A's income is 25% more than B's income.find B's income in terms of A's income?

Let's use an example, and then derive a formula:

Suppose B's income is $100. A's income is 25% more, which is +$25, or $125.

So far, we have A = B + .25B

or A = 1.25B

To find B in terms of A, we divide both sides by 1.25:

A/1.25 = B,

which can be simplified to

B = A/(5/4)

or ** B = 4A/5 or B = 0.8 A**

**
**This also means that B's income is 80%

**of**A's income, or 20%

**less than**A's income.

## Comments