Which of the following numbers is exactly divisible by 45?
Question and options
Which of the following numbers is exactly divisible by 45?
- 181560
- 331145
- 202860
- 2023550
Answer and explanation
Correct answer: C - 202860
Divisible by 45 means divisible by 5 and 9. 202860 ends in 0 and its digit sum is 18, so it works; 181560 (sum 21), 331145 (sum 17), 2023550 (sum 17) fail.
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