In the decimal representation of x, where 0<x<1,is the tenth digit of x nonzero? (1)16x is an integer (2)8x is an integer
Range of x is as follows: ..............-1...............0...........(x)..........1................ As 16x and 8x are integers, Stem1=> 16x=1=>x=1/16=0.0625, say 4/16=0.25 Answer is YES and NO. NOT SUFF. Stem2=>8x=1=>x=1/8=0.125, say 4/8=0.50 SUFF. Answer: B
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发表于 2008-11-7 21:26:00
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