If 37y4 is exactly divisible by 9, then the least value of y is
We know that if sum of digits of a number is divisible by 9, then the number is divisible by 9.
Here,
3 + 7 + y + 4 = multiple of 9
y + 14 = 0, 9, 18, …
Hence,
y = 4
∴the least value of y is 3