DS PROB

[vivek.kapoor83]

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

[mals24]

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