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Find two numbers whose sum is 80 and difference is 40 |
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Answer» 60 and 20.. Let the first no. be X and second no. be Y A/Q X+Y=80....(1). X-Y=40...(2). Equate both eq. ||. 2x=120. ||. X=60 , Y=20. Let the first no. be x. Then second no. be (80-x) |
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