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Question
Which one of the following numbers is completely divisible by 45?
Which one of the following numbers is completely divisible by 45?
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Solution
The correct option is D 202860
45=5×9, 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
45=5×9, 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
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