Question

If the ci on certain sum for 2 years at 5% be rs 410, what would be the si

Answer 1

Simple Interest is Rs 400/-

Answer 2

The simple interest is Rs.400.

Step-by-step explanation:

Given : If the CI on certain sum for 2 years at 5% be RS.410.

To find : What would be the SI ?

Solution :

Using compound interest formula,

$CI=P[(1+r)^t-1]$

Where, CI= Rs.410 is the compound interest

r=5%=0.05 is the interest rate

t=2 years is the time

P is the principal

Substitute the values,

$410=P[(1+0.05)^2-1]$

$410=P[(1.05)^2-1]$

$410=P[1.1025-1]$

$410=0.1025P$

$P=\frac{410}{0.1025}$

$P=4000$

The simple interest formula is

$SI=P\times R\times T$

$SI=4000\times 0.05\times 2$

$SI=400$

Therefore, the simple interest is Rs.400.

#Learn more

The ci on a certain sum for 2 years is 105 and si is 100. Find the sum

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