1.

Which of the given value is exactly divisible by 30?1). 25302). 15703). 23704). 1520

Answer»

For a NUMBER to divisible by 30, the number should be divisible by both 10 and 3.

For a number to divisible by 10, the last DIGIT should be zero

For a number to divisible by 3, the sum of digits should be divisible by 3

All the numbers are divisible by 10.

The sum of digits of 2530 is 10 which is not divisible by 3

The sum of digits of 1570 is 13 which is not divisible by 3

The sum of digits of 2370 is 12 which is divisible by 3. 2370/30 = 79

The sum of digits of 1520 is 8 which is not divisible by 3

 2370 is divisible by 30.


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