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Numbers - General Aptitude

Q1:

Which one of the following numbers is completely divisible by 45?

A 181560

B 331145

C 202860

D 2033555

E None of these

ANS:C - 202860

45 = 5 x 9, where 5 and 9 are co-primes. Unit digit must be 0 or 5 and sum of digits must be divisible by 9. Among given numbers, such number is 202860.