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@13

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100 quizzes

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2025-04-30 19:13:00

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Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the

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Category Name: Mathematics

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Category Description: Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebraalgebra, geometry, and analysis, respectively.

Q1. If 2^x = 32, then the value of x is
Q1. If 2^x = 32, then the value of x is

(A) 4
(A) 4

(B) 5
(B) 5

(D) 7
(D) 7

Answer: (B) 5
Answer: (B) 5

2⁵ = 2*2*2*2*2 = 32

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@1705

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2024-10-23

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Q2. In a school with 10 teachers, one retires and immediately a new teacher of age 25 years joins. As a result, the average age of the teacher reduces by 3. The age of the retired teacher is
Q2. In a school with 10 teachers, one retires and immediately a new teacher of age 25 years joins. As a result, the average age of the teacher reduces by 3. The age of the retired teacher is

(A) 55 years
(A) 55 years

(B) 65 years
(B) 65 years

(D) 60 years
(D) 60 years

Answer: (A) 55 years
Answer: (A) 55 years

25 years + (3*10) years = 55 years

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@1024

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2024-04-19

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Q3. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is
Q3. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is

(A) 25
(A) 25

(B) 45
(B) 45

(D) 27
(D) 27

Answer: (D) 27
Answer: (D) 27

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@900

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2024-03-03

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Q4. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is
Q4. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is

(A)

\frac{4}{5}

(A)

\frac{4}{5}

(B)

\frac{2}{3}

(B)

\frac{2}{3}

(C)

\frac{5}{4}

(C)

\frac{5}{4}

(D)

\frac{3}{2}

(D)

\frac{3}{2}

Answer: (D)

\frac{3}{2}

Answer: (D)

\frac{3}{2}

\frac{3}{2}

\frac{3}{2} \times \frac{4}{9}

\frac{12}{18}

\frac{2}{3}

\frac{3}{2}

\frac{3}{2} \times \frac{4}{9}

\frac{12}{18}

\frac{2}{3}

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@1701

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2024-10-23

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Q5. A hostel has 120 students and food supplies are for 45 days. If 30 more students joined the hostel, then how many days the hostel will run with the existing food?
Q5. A hostel has 120 students and food supplies are for 45 days. If 30 more students joined the hostel, then how many days the hostel will run with the existing food?

(A) 40 days
(A) 40 days

(B) 38 days
(B) 38 days

(D) 32 days
(D) 32 days

Answer: (C) 36 days
Answer: (C) 36 days

36 days

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@1021

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2024-04-19

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Q6. Which is the smallest prime number?
Q6. Which is the smallest prime number?

(A) 1
(A) 1

(B) 2
(B) 2

(D) 5
(D) 5

Answer: (B) 2
Answer: (B) 2

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@660

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2024-03-03

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Q7. Two trains of 200 m and 100 m long are running parallel at the rate of 20 m/sec. and 22 m/sec. respectively. How much time will they take to cross each other, if the trains are running along the same direction?
Q7. Two trains of 200 m and 100 m long are running parallel at the rate of 20 m/sec. and 22 m/sec. respectively. How much time will they take to cross each other, if the trains are running along the same direction?

(A) 120 sec
(A) 120 sec

(B) 100 sec
(B) 100 sec

(D) 50 sec
(D) 50 sec

Answer: (D) 50 sec
Answer: (D) 50 sec

The difference of speed = 22m/s - 20m/s = 2m/s As the train with speed 22m/s will cross the other, hence this train have to go the smallest length of the trains distance ahead of the other to cross completely. Hence This train will be ahead of 100m with a speed of 2m/s. Hence The time to cross each other will take = 100m / (2m/s) = 50 sec

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@1132

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2024-05-15

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Q8. If A : B = 3, then 144A : 36B is
Q8. If A : B = 3, then 144A : 36B is

(A) 4
(A) 4

(B) 12
(B) 12

(D) 16
(D) 16

Answer: (B) 12
Answer: (B) 12

A : B = 3 =>

\frac{A}{B}

= 3

\frac{144 A}{36 B}

\frac{144}{36} \times \frac{A}{B}

\frac{144}{36}

x 3 = 4 x 3 = 12

A : B = 3 =>

\frac{A}{B}

= 3

\frac{144 A}{36 B}

\frac{144}{36} \times \frac{A}{B}

\frac{144}{36}

x 3 = 4 x 3 = 12

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@1697

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2024-10-23

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Q9. Find the value of $\sqrt{\frac{225}{729}} - \sqrt{\frac{25}{144}} - \sqrt{\frac{16}{81}}$
Q9. Find the value of $\sqrt{\frac{225}{729}} - \sqrt{\frac{25}{144}} - \sqrt{\frac{16}{81}}$

(A)

\frac{- 5}{9}

(A)

\frac{- 5}{9}

(B)

\frac{- 7}{12}

(B)

\frac{- 7}{12}

(C)

\frac{- 20}{27}

(C)

\frac{- 20}{27}

(D)

\frac{- 11}{36}

(D)

\frac{- 11}{36}

Answer: (D)

\frac{- 11}{36}

Answer: (D)

\frac{- 11}{36}

\sqrt{\frac{225}{729}} - \sqrt{\frac{25}{144}} - \sqrt{\frac{16}{81}}

\sqrt{\frac{15 * 15}{27 * 27}} - \sqrt{\frac{5 * 5}{12 * 12}} - \sqrt{\frac{4 * 4}{9 * 9}}

\frac{15}{27} - \frac{5}{12} - \frac{4}{9}

\frac{60 - 45 - 48}{108}

\frac{- 33}{108}

\frac{- 11}{36}

\sqrt{\frac{225}{729}} - \sqrt{\frac{25}{144}} - \sqrt{\frac{16}{81}}

\sqrt{\frac{15 * 15}{27 * 27}} - \sqrt{\frac{5 * 5}{12 * 12}} - \sqrt{\frac{4 * 4}{9 * 9}}

\frac{15}{27} - \frac{5}{12} - \frac{4}{9}

\frac{60 - 45 - 48}{108}

\frac{- 33}{108}

\frac{- 11}{36}

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@1121

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2024-05-09

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Q10. A lady deposits money in her savings bank in such a way that every next day her deposit amount is ₹ 12 more than her previous day deposit. If she starts her deposit with ₹ 12 on the first day, the total amount deposited by Liza at the end of 30 days will be :
Q10. A lady deposits money in her savings bank in such a way that every next day her deposit amount is ₹ 12 more than her previous day deposit. If she starts her deposit with ₹ 12 on the first day, the total amount deposited by Liza at the end of 30 days will be :

(A) 5,420
(A) 5,420

(B) 5,580
(B) 5,580

(D) 5,780
(D) 5,780

Answer: (B) 5,580
Answer: (B) 5,580

The formula for the sum of the first n terms of an arithmetic progression is

S_{n} = \frac{n}{2} (a + a n)

\frac{30}{2} (12 + 12 * 30)

= 15*(12+360) = 15 * 372 = 5580

The formula for the sum of the first n terms of an arithmetic progression is

S_{n} = \frac{n}{2} (a + a n)

\frac{30}{2} (12 + 12 * 30)

= 15*(12+360) = 15 * 372 = 5580

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@1119

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2024-05-09

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Q11. The sum of 5 consecutive odd numbers is found to be 95. The largest of the numbers is
Q11. The sum of 5 consecutive odd numbers is found to be 95. The largest of the numbers is

(A) 17
(A) 17

(B) 21
(B) 21

(D) 19
(D) 19

Answer: (C) 23
Answer: (C) 23

X + (X+2) + (X+4) + (X+6) + (X+8) = 95 => 5X + 20 = 95 => 5X = 95-20 => 5X = 75 => X = 15 Hence (X+8) = 15+8 = 23

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@1706

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2024-10-23

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Q12. The least number by which 2450 must be multiplied to make it a perfect square, is
Q12. The least number by which 2450 must be multiplied to make it a perfect square, is

(A) 2
(A) 2

(B) 3
(B) 3

(D) 5
(D) 5

Answer: (A) 2
Answer: (A) 2

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@1028

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2024-04-19

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Q13. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :
Q13. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :

(A) 20%
(A) 20%

(B) 40%
(B) 40%

(D) 28%
(D) 28%

Answer: (D) 28%
Answer: (D) 28%

Net change (-40 + 20 +

\frac{(- 40) * 20}{100}

)% = (-20 +

\frac{- 800}{100}

)% = (-20 - 8)% = -28% = 28%

Net change (-40 + 20 +

\frac{(- 40) * 20}{100}

)% = (-20 +

\frac{- 800}{100}

)% = (-20 - 8)% = -28% = 28%

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@1123

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2024-05-15

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Q14. If 16℅ of 40℅ of a number is 8, then the number is
Q14. If 16℅ of 40℅ of a number is 8, then the number is

(A) 250
(A) 250

(B) 125
(B) 125

(D) 100
(D) 100

Answer: (B) 125
Answer: (B) 125

125

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@872

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2024-03-03

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Q15. How many prime numbers exist, which are less than 40?
Q15. How many prime numbers exist, which are less than 40?

(A) 10
(A) 10

(B) 11
(B) 11

(D) 13
(D) 13

Answer: (C) 12
Answer: (C) 12

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@673

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2024-03-03

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Q16. What is the term for a angle greater than 90 degrees but less than 180 degrees?
Q16. What is the term for a angle greater than 90 degrees but less than 180 degrees?

(A) Acute angle
(A) Acute angle

(B) Right angle
(B) Right angle

(D) Straight angle
(D) Straight angle

Answer: (C) Obtuse angle
Answer: (C) Obtuse angle

An obtuse angle is an angle greater than 90 degrees but less than 180 degrees, like the angle formed by two walls that meet at a corner.

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@1266

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2024-07-02

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Q17. What is the term for a number that has no decimal places or fractional part?
Q17. What is the term for a number that has no decimal places or fractional part?

(A) Integer
(A) Integer

(B) Fraction
(B) Fraction

(D) Percentage
(D) Percentage

Answer: (A) Integer
Answer: (A) Integer

An integer is a whole number, either positive, negative, or zero, without a decimal or fractional part, such as 5, -3, or 0.

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@1261

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2024-07-02

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Q18. What is the term for a triangle with three equal sides?
Q18. What is the term for a triangle with three equal sides?

(A) Isosceles triangle
(A) Isosceles triangle

(B) Equilateral triangle
(B) Equilateral triangle

(D) Right triangle
(D) Right triangle

Answer: (B) Equilateral triangle
Answer: (B) Equilateral triangle

An equilateral triangle is a triangle with three equal sides and angles, a regular polygon with three sides.

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@1267

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2024-07-02

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Q19. 98 toffees were distributed to some boys in a group. Each boy in the group got twice as many of the toffees as the number of boys. The number of boys in the group was
Q19. 98 toffees were distributed to some boys in a group. Each boy in the group got twice as many of the toffees as the number of boys. The number of boys in the group was

(A) 5
(A) 5

(B) 7
(B) 7

(D) 14
(D) 14

Answer: (B) 7
Answer: (B) 7

7 => x * 2x = 98 => x² =

\frac{98}{2}

=> x² = 49 => x = 7

7 => x * 2x = 98 => x² =

\frac{98}{2}

=> x² = 49 => x = 7

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@1112

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2024-05-09

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Q20. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :
Q20. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :

(A) 2 : 3
(A) 2 : 3

(B) 3 : 5
(B) 3 : 5

(D) 2 : 5
(D) 2 : 5

Answer: (A) 2 : 3
Answer: (A) 2 : 3

\frac{45}{100} * X = \frac{30}{100} * Y

\frac{X}{Y} = \frac{30 * 100}{100 * 45}

\frac{X}{Y} = \frac{2}{3}

= X:Y = 2:3

\frac{45}{100} * X = \frac{30}{100} * Y

\frac{X}{Y} = \frac{30 * 100}{100 * 45}

\frac{X}{Y} = \frac{2}{3}

= X:Y = 2:3

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@1118

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2024-05-09

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Mathematics (Mathematics) | MCQ Quizzes | Category (R/R/A)

Q1. If 2x = 32, then the value of x isQ1. If 2x = 32, then the value of x is

Q3. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers isQ3. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is

Q4. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction isQ4. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is

Q6. Which is the smallest prime number?Q6. Which is the smallest prime number?

Q8. If A : B = 3, then 144A : 36B isQ8. If A : B = 3, then 144A : 36B is

Q9. Find the value of 225729-25144-1681Q9. Find the value of 225729-25144-1681

Q11. The sum of 5 consecutive odd numbers is found to be 95. The largest of the numbers isQ11. The sum of 5 consecutive odd numbers is found to be 95. The largest of the numbers is

Q12. The least number by which 2450 must be multiplied to make it a perfect square, isQ12. The least number by which 2450 must be multiplied to make it a perfect square, is

Q13. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :Q13. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :

Q14. If 16℅ of 40℅ of a number is 8, then the number isQ14. If 16℅ of 40℅ of a number is 8, then the number is

Q15. How many prime numbers exist, which are less than 40?Q15. How many prime numbers exist, which are less than 40?

Q16. What is the term for a angle greater than 90 degrees but less than 180 degrees?Q16. What is the term for a angle greater than 90 degrees but less than 180 degrees?

Q17. What is the term for a number that has no decimal places or fractional part?Q17. What is the term for a number that has no decimal places or fractional part?

Q18. What is the term for a triangle with three equal sides?Q18. What is the term for a triangle with three equal sides?

Q20. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :Q20. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :

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1. Calculation Involved (Calculation is Required)

2. General Mathematics (General Mathematics)

3. Calculation Not Involved (Calculation is Not Required)

4. Mathematics (Mathematics)

Q1. If 2^x = 32, then the value of x is
Q1. If 2^x = 32, then the value of x is

Q3. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is
Q3. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is

Q4. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is
Q4. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is

Q6. Which is the smallest prime number?
Q6. Which is the smallest prime number?

Q8. If A : B = 3, then 144A : 36B is
Q8. If A : B = 3, then 144A : 36B is

Q9. Find the value of $\sqrt{\frac{225}{729}} - \sqrt{\frac{25}{144}} - \sqrt{\frac{16}{81}}$
Q9. Find the value of $\sqrt{\frac{225}{729}} - \sqrt{\frac{25}{144}} - \sqrt{\frac{16}{81}}$

Q11. The sum of 5 consecutive odd numbers is found to be 95. The largest of the numbers is
Q11. The sum of 5 consecutive odd numbers is found to be 95. The largest of the numbers is

Q12. The least number by which 2450 must be multiplied to make it a perfect square, is
Q12. The least number by which 2450 must be multiplied to make it a perfect square, is

Q13. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :
Q13. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :

Q14. If 16℅ of 40℅ of a number is 8, then the number is
Q14. If 16℅ of 40℅ of a number is 8, then the number is

Q15. How many prime numbers exist, which are less than 40?
Q15. How many prime numbers exist, which are less than 40?

Q16. What is the term for a angle greater than 90 degrees but less than 180 degrees?
Q16. What is the term for a angle greater than 90 degrees but less than 180 degrees?

Q17. What is the term for a number that has no decimal places or fractional part?
Q17. What is the term for a number that has no decimal places or fractional part?

Q18. What is the term for a triangle with three equal sides?
Q18. What is the term for a triangle with three equal sides?

Q20. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :
Q20. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :