Question

At what time rupees 900 will become rupees 1008 at simple interest of 6% per annum

Answer 1

P=Rs.900

R=6%

A=Rs.1008

S.I=Amount-Principal

=1008-900=108

$S.I = \frac{PRT}{100} \\ \\ 108 = \frac{900 \times 6 \times T }{100}$

$T = \frac{108 \times 100}{900 \times 6} = \frac{10800}{5400} = 2$

Time=2 years

Answer 2

The time rupees 900 will become rupees 1008 is 2 years.

Given:

The simple interest of 6% per annum is Rs 900.

To Find:

The time at which rupees 900 will become rupees 1008.

Solution:

To find the time rupees 900 will become rupees 1008 we will follow the following steps:

As given in the question,

Simple interest = 1008-900 = 108Rs.

Rate(r) = 6%

Principal(p) = 900Rs.

The formula for finding simple interest is:

$simple \: interest = \frac{p \times r \times t}{100}$

$time(t) = \frac{simple \: interest \times \times 100}{p \times r}$

$t = \frac{108×100}{900×6} =2 years$

Henceforth, time rupees 900 will become rupees 1008 is 2 years.

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