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EXERCISE 3.2orm the pair of linear equations in the following problems, and find their solutionsgraphically.(0)10 students of Class X took part in a Mathematics quiz. If the number of girls is 4more than the number of boys, find the number of boys and girls who took part inthe quiz.(i) 5 pencils and 7 pens together costR 50, whereas 7 pencils and 5 pens togethecost 46. Find the cost of one pencil and that of one pen. |
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