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Question


Given that 312 is divisible by 26. It will also be divisible by ________.


Options:
A .   7
B .   9
C .   11
D .   13
Answer: Option D
:
D

For any two numbers x and y, if x is divisible by y, then x is also divisible by each factor of y.
For example, 12 is divisible by 6, and 2 is a factor of 6. so, 12 is also divisible by 2.


Now, factors of 26 = 1, 2, 13, 26


312 is divisible by 26, hence it is also divisible by 13.



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