Question

if a number y2743 is to be divisible by 3 , what value can bey have,y have being a digit?

Answer 1

Step-by-step explanation:

Given number = 221

For a number to be divisible by 3 sum of digits must be divisible by 3.

Sum of digits = 2 + 2 + 1 = 5

Since 5 is not divisible by 3, therefore 221 not divisible by 3

Answer 2

Answer:

2,5,8

Step-by-step explanation:

y2743%3 = 0

since any number divisible by 3 must add its digits to form a multiple of 3,

y+2+7+3+4 is divisible by 3

y + 16 is divisible by 3

y = 2, 5 or 8