Question

Find the number divisible by 3.
A. 602
B. 563
C. 991
D. 753

Answer 1

Hint: To find the number divisible by 3, we check the divisibility rule for 3, for all the given numbers in the options and determine the answer.

Complete step-by-step answer:

We know the divisibility rule for 3,
If the sum of the digits of a number is divisible by 3, then the number is also divisible by 3.
A. 602
⟹6 + 0 + 2 = 8, which is not divisible by 3.
Hence the number is not divisible by 3.
B. 563
⟹5 +6 +3 = 14, which is not divisible by 3.
Hence the number is not divisible by 3.
C. 991
⟹9 + 9 + 1 = 19, which is not divisible by 3.
Hence the number is not divisible by 3.
D. 753
⟹7 + 5 + 3 = 15, which is divisible by 3.
Hence the number is divisible by 3.
Hence, Option D is the correct answer.

Note: In order to solve this type of questions the key is to have adequate knowledge in divisibility rules of numbers. Then we verify each option using the rules to determine the answer. Divisibility rules are different for different numbers.