'If 21y5 is a multiple of 9 , where y is a digit , what is the value o

1.	'If 21y5 is a multiple of 9 , where y is a digit , what is the value of y?
Answer» Number is 2115 And VALUE of y is 1 Steps : 21y5 is a multiple of 9 We know that divisibility by 9 rule If the sum of the digits of a number is DIVISIBLE by 9, then the number is divisible by 9 So, 2+1+y+5 = 9 or 0 8+y = 9 or 0 8+y = 0 and 8+y = 9 y = - 8 and y = 1 y = - 8 not possible Hence y = 1 is the answer

'If 21y5 is a multiple of 9 , where y is a digit , what is the value of y?

Answer»

Number is 2115

And VALUE of y is 1

Steps :

21y5 is a multiple of 9

We know that divisibility by 9 rule

If the sum of the digits of a number is DIVISIBLE by 9, then the number is divisible by 9

So,

2+1+y+5 = 9 or 0

8+y = 9 or 0

8+y = 0 and 8+y = 9

y = - 8 and y = 1

y = - 8 not possible

Hence

y = 1 is the answer

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'If 21y5 is a multiple of 9 , where y is a digit , what is the value of y?​

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'If 21y5 is a multiple of 9 , where y is a digit , what is the value of y?