Fill in the blanks to make the statements true. 3 x 5 is divisible by 9 of the digit x is ………………. .

Question

Philoid · Accepted Answer

We know that a number is a multiple of 9 if the sum of its digits is divisible by 9.

⇒ 3 + x + 5 = x + 8

⇒ x + 8 is divisible by 9 if x + 8 = 9, which gives x = 1.