Q23:
In the decimal representation of x, where 0 < x < 1, is the tenths digit if x nonzero?
(1) 16x is an integer.
(2) 8x is an integer.
I THINK D...OA IS DIFF
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IMO B
St 1. 16x = integer
16*(1/16)=integer
1/16 = 0.06----tenths digit is 0
16*(1/2)=integer
1/2=0.5------tenths digit is 5
St 1----INSUFF
St2. 8x=integer
8*(1/8 )=integer
1/8=0.125----tenths digits is 1
8*(1/2)=integer
1/2=0.5-----tenths digits is 5
St 2 is SUFF
Hence the answer is B
St 1. 16x = integer
16*(1/16)=integer
1/16 = 0.06----tenths digit is 0
16*(1/2)=integer
1/2=0.5------tenths digit is 5
St 1----INSUFF
St2. 8x=integer
8*(1/8 )=integer
1/8=0.125----tenths digits is 1
8*(1/2)=integer
1/2=0.5-----tenths digits is 5
St 2 is SUFF
Hence the answer is B
