Question

Question 43

If 213x27 is divisible by 9, then the value of x is 0.

Answer 1

False
Given, 213x27 is divisible by 9, so sum of its digits is also divisible by 9.
i.e. 2 + 1 + 3 + x + 2 + 7 = 0, 9, 18, 27, 36,....
$\Rightarrow$ x + 15 = 0, 9, 18, 27, 36, ....
$\Rightarrow$ x + 15 = 18 [$\because$ x is digit of a number]
$\Rightarrow$ x = 3