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Difficulty—
Source: Manhattan Prep
If p and q are two consecutive positive integers and pq= 30x , is x an integer?
1) p^2 is divisible by 25
2) 63 is a factor of q^2
The OA is C
If p and q are two consecutive positive integers and pq= 30x , is x an integer?
1) p^2 is divisible by 25
2) 63 is a factor of q^2
The OA is C
