Math, asked by sameer242, 1 year ago

if 31 y 5 is a multiple of 3, where why is a digit, what might be the value of Y?

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Answered by helpme10

any multiple of 3 has the sum of its digits to be the multiple of 3
here when we sum its digit we will get 3+1+5+y=9+y
therefore y =0
because the sum is already the multiple of 3
hope u get it!!!
mark as brainliest if u think

helpme10: u r not understanding dear which class u r in

Stranger47: It says find the values of y(all of it)

Stranger47: I'm much elder than u

helpme10: no it don't says find all the values of y. see there it is clearly written find value of y

helpme10: which class

Stranger47: Yes values of y are 0,3,6,9 and not 0 alone

helpme10: well!!! which class are u in

helpme10: u don't have any idea why don't u understand they are asking value of y not values.

Stranger47: I'm 12th dear

helpme10: ok!!!

Answered by Stranger47

We know that the digits of the multiples of 3, add up to give another multiple of 3.
For example 54 , 5+4=9 which is divisible by 3
963, 9+6+3=18 which is also divisible by 3
So they are the multiples of 3.

As per this 3+1+y+5 should be divisible by 3
Therefore y can be 0,3,6,9

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