the quiz.5 pencilscost Rs 46. Find the cost of one pencil and that of – InterviewSolution

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1.	the quiz.5 pencilscost Rs 46. Find the cost of one pencil and that of one pen.and 7 pens together cost Rs 50, whereas 7 pencils and 5 pens together
Answer» Let pencil be x and let pen be y5x+7y=507x+5y=46multiply first equation by 735x+49y = 350multiply second equation by 535x+25y=230solving them we get 24y=120 which gives y is 5 rupeessubstituting in second equation we get x is 3 rupees

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