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electronics and communication engineering exam question papers
1. If (225)Y = (165)8 find value of Y
(A): 11
(B): 7
(C): 8
(D): 9
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By: guest on 02 Jun 2017 12.55 am
(225)y => 2Y2 + 2Y + 5 = (165)8 => (117)10 ∴ 2Y2 + 2Y + 5 = 117 Y2 + Y - 56 = 0 ∴ Y = 7 or Y = - 8 ∴ Y should be 7.
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