Question

Which of the following numbers are divisible by 5?
(a) 4560 (b) 402 (c) 205
[3 marks]

Answer 1

(a) Numbers, which last with digits, 0 or 5 are always divisible by 5.
Here, unit digit of number 4560 is 0.
Hence, 4560 is divisible by 5
[1 mark]

(b) As we know, if unit digit is 0 and 5 then number is exactly divisible by 5.
Here, unit digit of number 402 is 2.
Hence, 402 is not divisible by 5.
[1 mark]

(c) Numbers, which last with digits, 0 or 5 are always divisible by 5.
Here, unit digit of number 205 is 5.
Hence, 205 is divisible by 5
[1 mark]