Question

Which of the following is divisible by 2?
a) 508 b) 509
[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 508 is 8, which is even number
And 8 is exactly divisible by 2.
Hence, 508 is divisible by 2.
[1 mark]

b) Here, last digit of number 509 is 9, which is odd number
And 9 is not divisible by 2.
Hence, 509 is not divisible by 2.
[1 mark]