From the pair of linear equation in the following problems, and find their solutions graphically
1) 10 students of class x took part in a mathemetics quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who took part in the quiz
2) 5 pencils and 7 pens together costs rupee of 50, where as 7 pencils and 5 pens together cost 46 rupees. Find the cost open pencil and that of pen.
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ok can you explain the question
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