Easy math learning

A boy learns typewriting and harmonium at the same time. He finds harmonium more easy to learn. This is

If my marks in maths are less than your markes in Maths by 20% then your marks in Maths are 25% more than my marks in Maths. (True/False)

Learning by observing is learning by

JEE Main Maths | How To Revise Class 11 Maths in 1 Month ?