Question

if the number x3451 is divisible by 3 ,where x is a digit,what can be the sum of all such values of x?
1)11
2)14
3)16
4)15

Answer 1

4) 15 because if a number is divisible by 3 then the sum of all its digits should be equal to the multiples of 3

Answer 2

Answer:15

Step-by-step explanation:

Given no is - x3451

We know that given no is divisible by 3 if only if sum of digits of that no is also divisible by 3.

ie.

= [(x+3+4+5+1)/3]

= [(x+13)/3]

For the single digit value of x = 2, 5, 8 given no is divisible by 3.

So, sum of value of x is = 2+5+8 = 15(Ans.)