I don't know how to answer this.

Question

If 10% of a number is 2 less than 20% of the same number, then 80% of the number equals_______.

Answer 1

0.1n=0.2n-2

Find n and find 80% of it.
-0.1n=-2
n=20

So 80% of n is 16

Answer 2

Answer is 16