monty6000 wrote:
If r and s are integers, is r divisible by 7?
(1) The product rs is divisible by 7.
(2) s is not divisible by 7.
Statement 1
RS is a multiple of 7 meaning either R or S could be a multiple of 7- though not info to be certain
insuff
Statement 2
no info given about R obv. insuff
1 & 2
RS/ 7 so R/7
C
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