Question

. If 157x234 is divisible by 3, then the digit
at the place of x is
(a) 0 (b) 1 (c)2 (d) 4​

Answer 1

Step-by-step explanation:

For a number to be divisible by 3, sum of its digits should be divisible by 3

therefore,

1+5+7+x+2+3+4 = 22+x

=> x = 2

Answer 2

1. 2

Step-by-step explanation:

• explain
• sum of digits =(5+1+7+x+3+2+4=22+x)
• what must be divisible by 3

answer :2