Question 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.

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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