What does the number x equal?
(1) The quotient when the number is divided by 7 is 52
(2) The remainder when the number is divided by 7 is 2
OA is C
Source: NOVA's GMAT DS Prep Course
Well, I got A because I was looking at statement (1) in isolation from Statement (2). However, I was wrong. In such questions, whenever divisor/quotient are mentioned, shall I assume that there shall always be a remainder?
DS: remainder
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- sl750
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Statement 1
N = Q*7 + R . We are given Q=52
52*7+R. Insufficient as for different R, we get a different N
Statement 2
N=Q*7 + R. R=2. Insufficient. N=2,9,16...
1+2
N=52*7+2. Sufficient
N = Q*7 + R . We are given Q=52
52*7+R. Insufficient as for different R, we get a different N
Statement 2
N=Q*7 + R. R=2. Insufficient. N=2,9,16...
1+2
N=52*7+2. Sufficient
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A) we don't know R
B) we don't know Q.
A&B) Sufficient
IMO C
B) we don't know Q.
A&B) Sufficient
IMO C
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