Question

find the sum on which the compound interest for 2 year at 10% p.a. is 154.

Answer 1

The sum is Rs. 733.33

Explanantion:

Let us consider principal is 100 %

after 1 year sum is: 100 + 10 = 110

After 2 years, the interest is 10 % of sum at start of year 2 = 110 (10/100) = 11 %

Total interest after, 2nd year = 10 + 11 % = 21 %

21 % is equivalent to 154

1 % is equivalent tp 154/21

100 % or total sum = (154/21) 100 = Rs. 733.33

Alternatively, you can do it with compound interest formula, which is relatively complex, but straight forward

Answer 2

Answer:

The sum is Rs 733.33

Step-by-step explanation:

Let us consider principle is 100%

after 1 year sum is : 100+10=110

After 2years the interest is 10% of sum at start of year 2= 110( 10/100)= 11%

Total interest after 2nd years = 10+ 11% = 21%

21% is equivalent to 154

1% is equivalent to 154/21

100% or total sum = (154/21) 100 = Rs 733.33