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Which one of the following numbers is divisible by 15 ?
Answer & Solution
Correct Answer:
Option
A
Consider the number is 17325
Its unit digit is 5, so it is divisible by 5
Sum of its digits = (5 + 2 + 3 + 7 + 1) = 18, which is divisible by 3
So, the given number is divisible by 3
And since 5 and 3 are co-primes,
So the given number is divisible by (5 × 3), i.e., 15
Its unit digit is 5, so it is divisible by 5
Sum of its digits = (5 + 2 + 3 + 7 + 1) = 18, which is divisible by 3
So, the given number is divisible by 3
And since 5 and 3 are co-primes,
So the given number is divisible by (5 × 3), i.e., 15
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