If x is an integer divisible by 15 and not by 20, then x is not divisible by?
1) 6
2) 10
3) 12
4) 30
5) 150
1) 6
2) 10
3) 12
4) 30
5) 150
As x is divisible by 15 (= 3*5), x is divisible by both 3 and 5.xtremecoder007 wrote:If x is an integer divisible by 15 and not by 20, then x is not divisible by?
Now x is divisible by 5 but not by 20 (= 4*5).
Hence, x is not divisible by 4.
Hence, x will not be divisible by any multiple of 4.
Only such option is 12.
The correct answer is C.
