Question

if the 4 digit no x27 y exactly divisible by 9 then the least value of (X+y) is​

Answer 1

Answer:

If you know the divisibility of 9 then this question will be easy for you......

Divisibility of 9 says if the sum of all the digit of number is divisible by 9 then that number will also divisible by 9

therefore some digits of x27y is 9+x+y

minimum value x+y must be equal to 9 because then the sum will be 18....and it is divisible by 9.

possible value of x+y

x=9 y=0

x=1 y=8

x=2 y=7

x=3 y=6

x=4 y=5

x=5 y=4

x=6 y=3

x=7 y=2

x=8 y=1

This is the answer

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