Question

Rs. 9000 will amount to Rs.10260 at 3.5% p.a. simple interest in the years
(a) 2 years
(b) 4 years
(c) 3 years
(d) 5 years

Answer 1

Answer:

5year mija thik say pata nahi

Answer 2

Answer:

Rs. 9000 will amount to Rs.10260 at 3.5% p.a. simple interest in 4 years.

So option b is the correct answer.

Step-by-step explanation:

Given,

9000 rupees will become 10260 rupees at 3.5% p.a. simple interest.

Here we want to find total number of years.

We know by simple interest rule,

Amount $= p + \frac{prt}{100}$

Where p is principal,r is rate of interest and t is time.

For example,

if principal is 1000 rupees and r is 10% and t is 2 years then

amount in simple interest

$= 1000 + \frac{1000 \times 10 \times 2}{100} \\ = 1000 + (100 \times 2) \\ = 1000 + 200 \\ = 1200 \: rupees$

Here,

$p = 9000 \: rupees \\ r = 3.5\% \\ amount = 10260 \: rupees$

So,

$10260 = 9000 + \frac{9000 \times 3.5 \times t}{100} \\ 10260 = 9000 + (90 \times 3.5 \times t) \\ 315t = 10260 - 9000 \\ 315t = 1260 \\ t = \frac{1260}{315} \\ t = 4$

Therefore Rs. 9000 will amount to Rs.10260 at 3.5% p.a. simple interest in 4 years.

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