The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is : [#1117]

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Q1. The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is :
Q1. The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is :

(A) 1.73
(A) 1.73

(B) 2.03
(B) 2.03

(D) 1.03
(D) 1.03

Answer: (C) 2.73
Answer: (C) 2.73

\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}

\sqrt{0.02*0.02} + \sqrt{1.2*1.2} + \sqrt{1.3*1.3} + \sqrt{0.03*0.03}

= 0.2 + 1.2 + 1.3 + 0.03 = 2.73

\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}

\sqrt{0.02*0.02} + \sqrt{1.2*1.2} + \sqrt{1.3*1.3} + \sqrt{0.03*0.03}

= 0.2 + 1.2 + 1.3 + 0.03 = 2.73

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Q1. 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 :
Q1. 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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Q2. Which is the smallest prime number?
Q2. 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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Q3. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :
Q3. 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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Q4. Which is the smallest Natural Number?
Q4. Which is the smallest Natural Number?

(A) -1
(A) -1

(B) 0
(B) 0

(D) 2
(D) 2

Answer: (C) 1
Answer: (C) 1

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Q5. A number was increased by 40% and thereafter decreased by 40%. The net change in the number in percentage is
Q5. A number was increased by 40% and thereafter decreased by 40%. The net change in the number in percentage is

(A) 16% increase
(A) 16% increase

(B) 16% decrease
(B) 16% decrease

(D) No change
(D) No change

Answer: (B) 16% decrease
Answer: (B) 16% decrease

16% decrease = 40-40-

\frac{40 * 40}{100}

% = -

\frac{1600}{100}

% = -16%

16% decrease = 40-40-

\frac{40 * 40}{100}

% = -

\frac{1600}{100}

% = -16%

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Q6. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is
Q6. 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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Q7. Which of the following is a prime number?
Q7. Which of the following is a prime number?

81,33,71,93

81,33,71,93

(A) 93
(A) 93

(B) 33
(B) 33

(D) 81
(D) 81

Answer: (C) 71
Answer: (C) 71

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Q8. If the price of sugar increases by 20%, by what percentage should a household reduce its consumption of sugar so that the budget remains the same?
Q8. If the price of sugar increases by 20%, by what percentage should a household reduce its consumption of sugar so that the budget remains the same?

(A)

13 \frac{2}{3} %

(A)

13 \frac{2}{3} %

(B)

14 \frac{2}{3} %

(B)

14 \frac{2}{3} %

(C)

15 \frac{2}{3} %

(C)

15 \frac{2}{3} %

(D)

16 \frac{2}{3} %

(D)

16 \frac{2}{3} %

Answer: (D)

16 \frac{2}{3} %

Answer: (D)

16 \frac{2}{3} %

16 \frac{2}{3} %

16 \frac{2}{3} %

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Q9. The sum of the four consecutive alternate numbers is 64. The smallest number amongst them is
Q9. The sum of the four consecutive alternate numbers is 64. The smallest number amongst them is

(A) 13
(A) 13

(B) 11
(B) 11

(D) 9
(D) 9

Answer: (A) 13
Answer: (A) 13

The smallest number amongst them is 13 => X + (X+2) + (X+4) + (X+6) = 64 => 4X + 12 = 64 => 4X = 64 - 12 => 4X = 52 => X = 13

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Q10. 100% of 100 when added to 200% of 200 would result
Q10. 100% of 100 when added to 200% of 200 would result

(A) 300
(A) 300

(B) 400
(B) 400

(D) 600
(D) 600

Answer: (C) 500
Answer: (C) 500

100 * 100% + 200 * 200% =

100 \times \frac{100}{100} + 200 \times \frac{200}{100}

\frac{10000}{100} + \frac{40000}{100}

= 100 + 400 = 500

100 * 100% + 200 * 200% =

100 \times \frac{100}{100} + 200 \times \frac{200}{100}

\frac{10000}{100} + \frac{40000}{100}

= 100 + 400 = 500

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The value of 0.04 + 1.44 + 1.69 + 0.0009 is : [#1117]

Q1. The value of 0.04 + 1.44 + 1.69 + 0.0009 is :Q1. The value of 0.04 + 1.44 + 1.69 + 0.0009 is :

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The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is : [#1117]

Q1. The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is :
Q1. The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is :

Q2. Which is the smallest prime number?
Q2. Which is the smallest prime number?

Q3. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :
Q3. 45% of a number is same as 30% of another number. The ratio of the first number to the second number is :

Q4. Which is the smallest Natural Number?
Q4. Which is the smallest Natural Number?

Q5. A number was increased by 40% and thereafter decreased by 40%. The net change in the number in percentage is
Q5. A number was increased by 40% and thereafter decreased by 40%. The net change in the number in percentage is

Q6. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is
Q6. The difference of two numbers is 5 and the difference of their square is 135. Then the sum of the numbers is

Q7. Which of the following is a prime number?
Q7. Which of the following is a prime number?

Q9. The sum of the four consecutive alternate numbers is 64. The smallest number amongst them is
Q9. The sum of the four consecutive alternate numbers is 64. The smallest number amongst them is

Q10. 100% of 100 when added to 200% of 200 would result
Q10. 100% of 100 when added to 200% of 200 would result