Q. Which of the following is completely divisible by 45?
✅ Correct Answer: (B)
306990
Explanation: A number that can be divisible by 3, 5, and 9 is also divisible by 45.
So, we check the divisibility of given numbers by the following rules -
A number is divisible by 3 if the sum of its entire digits is divisible by 3.
The number which ends with 0 or 5 is divisible by 5.
A number is divisible by 9 if the sum of its entire digits is divisible by 9.
The number 306990 fulfills all the requirements, so the answer is 306990.
Explanation by: Praveen Singh
A number that can be divisible by 3, 5, and 9 is also divisible by 45.
So, we check the divisibility of given numbers by the following rules -
A number is divisible by 3 if the sum of its entire digits is divisible by 3.
The number which ends with 0 or 5 is divisible by 5.
A number is divisible by 9 if the sum of its entire digits is divisible by 9.
The number 306990 fulfills all the requirements, so the answer is 306990.
So, we check the divisibility of given numbers by the following rules -
A number is divisible by 3 if the sum of its entire digits is divisible by 3.
The number which ends with 0 or 5 is divisible by 5.
A number is divisible by 9 if the sum of its entire digits is divisible by 9.
The number 306990 fulfills all the requirements, so the answer is 306990.