Question

In each of the following numbers replace *by the smallest number to make it divisible by 3 (i) 27*4 (ii) 53 *46 ​

Answer 1

Step-by-step explanation:

number will be divisible by 3 if sum of all digits is divisible by 3

(i) 27x4 => (2+7+x+4) = 13+x

here 13+x should be divisible by 3

13+x = 12+(1+x)

=> 1+x should be divisible by 3

=> x=2 ....(as 1+2=3 , and 3 is divisible by 3)

(ii) 53x46 => (5+3+x+4+6) = 18+x

=> 18+x should be divisible by 3

=> x should be divisible by 3

=> x=3