Question

the simple interest on a certain sum at 4 percent per annum for 4 years is rs 80 find the sum

Answer 1

Answer:

see the explaination in attatchment

Answer 2

Answer:

500rs

Step-by-step explanation:

Simple Interest (I) = 80rs,

Interest Rate (R) = 4%,

Time Period (T) = 4 years,

Principal Amount (P) = ?

Now,

Let Principal Amount (P) be x,

Simple Interest (I) = Principal Amount (P) x Interest Rate (R) x Time Period (T) / 100

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

$80 = \frac{x \times 4 \times 4}{100}$

$x = \frac{80 \times 100}{4 \times 4}$

$x = \frac{8000}{16}$

Therefore,

$x = 500$

Therefore the sum is 500rs.

I hope it helps you.

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