If 21 y 4 is a multiple of 9 where
y is a digit. what is the value of y
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Answered by
2
Answer:
y value Matlab............
Answered by
0
Answer:
y = 2
Step-by-step explanation:
For a number to be divisible by 9 , its digits sum must be 9 or a multiple of 9.
∴ In number 21y4 ,
2 + 1 + y + 4 = 9
∴ y + 7 = 9
∴ y = 2
If sum of digits in 21y4 is taken as 18 i.e. , 9×2 ,
y will not remain a digit .
∴ y = 2
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