(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? |
Answer:
(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.
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