Question

For what value of x if 45x7 is divisible by 9.

Answer 1

Step-by-step explanation:

from the divisibility rule of 9

if the sum of the number is divided by 9 then the entire number will be divided by 9

here the number = 45x7

sum of numbers 4 + 5 + 7 = 16

but 16 is not divisible by 9 if we add two then it will be 18 and will be divisible by 9

So let x = 2

4 + 5 + 2 + 7 = 18 which is divisible by 9

4527 ÷ 9 = 503