Question

Check if 78532 is divisible by 9.
[2 marks]

Answer 1

The rule for divisibility by 9 is similar to divisibility rule for 3. That is, if the sum of digits of the number is divisible by 9, then the number itself is divisible by 9.
[1 mark]

Here, the sum of digits of 78532 will be
7+8+5+3+2 = 25
[0.5 mark]
Since, 25 is not divisible by 9,
Hence 78532 is not divisible by 9
[0.5 mark]