Question

What is the value of a and b respectively , if 79a856776b is divided by 8and 9?

Answer 1

Answer:

for divisibility by 9 ,, sum of digits is divisible by 9 .

Total =55+A+B,

if B=0, A=8

if B=8, A=0,9

so we get pairs (8,0),(0,8,(9,8).

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