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यदि 2 + 7 = 17, 2z + x = 15 और 2x + y = 10, तो x + y + z का मान होगा।(क) 42(ख) 39(ग) 41(घ) 14 |
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Answer» (घ) 14 (2y + z) + (2z +x) + (2x + y) = 17 + 15 + 10 2y + z + 2z + x + 2x + y = 42 3y + 3z + 3x = 42 = x ÷ y + z = 42/3 = 14 |
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