(a) Given Munnu’s age to be x years, can you guess what (x – 2) may show? Can you guess what (x + 4) may show? What (3 x + 7) may show?
(b) Given Sara’s age today to be y years. Think of her age in the future or in the past.
What will the following expression indicate?
(c) Given n students in the class like football, what may 2n show? What may show? (Hint : Think of games other than football).
Age of Munnu = x years
(x+4) may show Munnu's age after 4 years.
(3x+7) may show age of his father.
y + 7 would indicate age of Sara after 7 years.
y-3 would indicate age of Sara 3 years back.
would indicate age of Sara after years.
would indicate age of Sara years back.
2n may show number of students who like cricket.
may show number of students who like tennis.