Ex 11.4, 3 (a) Given Munnu’s age to be x years, can you guess what (x – 2) may show? (Hint : Think of Munnu’s younger brother.) Can you guess what (x + 4) may show? What (3x + 7) may show? Given Munnu’s age = x years
(x − 2) is an age smaller than x
So, (x − 2) years can be the age of Munnu’s younger brother
(x + 4) is an age bigger than x
So, (x + 4) years can be the age of Munnu’s elder sister.
(3x + 7) is an age very bigger than Munnu
So, (3x + 7) years can be the age of Munnu’s father.

Made by

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.