• # question_answer (a) Given, Mannu?s age to be x years, can you guess, what $(x-2)$ may show? Can you guess what $(x+4)$may show? What $(3x+7)$ may show? (b) Given Sara?s age today to be y years. Think of her age in the future in the past. What will the following expression indicate? $(y+7),(y-3),\left( y+4\frac{1}{2} \right),\left( y-2\frac{1}{2} \right)$ (c) Given, n students in the class like football what may 2 n show? What may $\frac{n}{2}$ show?

 (a) $(x-2)$ may show the age of his younger sibling. $(x+4)$ may show the age of his elder sibling  $(3x+7)$ may show the age of his grandfather. (b) The expressions $(y+7)$,  may $\left( y+4\frac{1}{2} \right)$ may indicate sara?s future?s age, and $(y-3)\left( y-2\frac{1}{2} \right)$may indicate Sara?s past age. (c) The expression 2 n may show the number of students who like hockey and the expression $\frac{n}{2}$ may show the number of students who like cricket.