Question

Which of the following is divisible by 2?
(a) 2144 (b) 633
[3 marks]

Answer 1

If a number is even or a number whose last digit is an even number i.e. 2, 4, 6, 8 including 0, it is always completely divisible by 2.
[1 mark]

(a) Here, last digit of number 2144 is 4, which is even number and 4 is exactly divisible by 2.
Hence, 2144 is divisible by 2.
[1 mark]

(b) Here, last digit of number 633 is 3, which is odd number and 3 is not divisible by 2.
Hence, 633 is not divisible by 2.
[1 mark]