Question

A man receives 3% interest on 1/3rd of his capital and 6% interest on remaining capital. The
percentage interest he receives, on the whole, is which of the following?​

Answer 1

Answer:

5%

Step-by-step explanation:

Percentage interest he receives ,on the whole ,will be (1/3x3/100+6/100x2/3)x100 =(1/100+4/100)x100=5%

Answer 2

Given,

A man receives 3% interest on 1/3rd of his capital and 6% interest on remaining capital.

To find,

What percentage interest he receives on the whole?

Solution,

According to the question, we know that,

Interest on 1/3 capital = 3%

Interest on 2/3 capital = 6%

Interest on whole = mean of interest earned

So,

Mean of interest earned = 3(1/3) + 6(2/3) = 1 + 4 = 5%

Hence, the man receives 5% interest on the whole.