DS : finite nonzero

[saketbansal]

Does the decimal equivalent of P/Q, where P and Q are postive integers, contain only a finite number of nonzero digits>

1. P is factor of 200
2. Q is a factor of 100

[flex_manny]

Answer should be B

1. P is factor of 200
Insufficient: Numerator doesn't really matter

2. Q is a factor of 100
Sufficient
factors of 100 --> 1,2,5, and other combinations of 2,5. None of them leave a non terminating decimal

[Gmater-1]

Ans is B

stmt 1: we don't know denominator, say 200/3 is infinite decimal whereas 200/2 is not : INsufficient

Stmt 2: Sufficient
If denominator is in form of 10^n (where n is an integer) on division it will always result in finite decimal

[flex_manny]

GMater:

From 2, the denominator is NOT in the form of 10 ^ n, but a factor of 100. Hence Q can be 2 or 5 and so on

[Gmater-1]

Oops, I missed it.

Anyway, If the denominator can be converted to the form of 10^n. The division results in finite decimal