At what percentage of simple interest does an amount of money double in 12 years? [#1702]

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Q1. At what percentage of simple interest does an amount of money double in 12 years?
Q1. At what percentage of simple interest does an amount of money double in 12 years?

(A)

9 \frac{1}{2} %

(A)

9 \frac{1}{2} %

(B)

8 \frac{1}{2} %

(B)

8 \frac{1}{2} %

(C)

8 \frac{1}{3} %

(C)

8 \frac{1}{3} %

(D)

9 \frac{1}{3} %

(D)

9 \frac{1}{3} %

Answer: (C)

8 \frac{1}{3} %

Answer: (C)

8 \frac{1}{3} %

P *

8 \frac{1}{3} %

* 12 = P *

\frac{25}{3} %

* 12 = P *

\frac{300}{3} %

= P * 100%

P *

8 \frac{1}{3} %

* 12 = P *

\frac{25}{3} %

* 12 = P *

\frac{300}{3} %

= P * 100%

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@1702

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34p5 -> 3+4+p+5 = 12+p 12+p = 9k 12+6 = 18 = 9k p = 6

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Q4. 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 :
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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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(B) 12
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(D) 36
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=> 2x * 3x = 96 => 6x² = 96 => x² = 96/6 => x² = 16 => x = 4 2x + 3x = 5x = 5 * 4 = 20

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Q7. At what speed should a car travel on a highway to reach a destination 12 km away in 15 minutes?
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12 ---- x 60 = 48 KMPH 15

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Q8. If the average age of A, B and C is 22 years and the average age of B and C is 25 years, then find the age of A after 9 years from now.
Q8. If the average age of A, B and C is 22 years and the average age of B and C is 25 years, then find the age of A after 9 years from now.

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25 years => A+B+C = 22*3 => A+(B+C) = 66 => A+(25*2) = 66 => A = 66-50 => A = 16 After 9 years A = 16+9 = 25 years

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Q9. The smallest among $\sqrt{\frac{1}{2}}, \sqrt{\frac{1}{3}}, \sqrt{\frac{1}{4}} a n d \sqrt{\frac{2}{3}}$ is
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(A)

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(A)

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(B)

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\sqrt{\frac{1}{4}}

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\sqrt{\frac{1}{4}}

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\sqrt{\frac{1}{4}}

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\sqrt{\frac{1}{4}}

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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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At what percentage of simple interest does an amount of money double in 12 years? [#1702]

Q1. At what percentage of simple interest does an amount of money double in 12 years?Q1. At what percentage of simple interest does an amount of money double in 12 years?

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