Question

5901AB04 is an eight digit number divisible by 792 .Find A+B

Answer 1

divisibility rule for 11 is if sum of difference of the alternative digits is zero or a multiple of 11 then the given number is divisible by 11

792 is divisible by 11

since 9=7+2

9=9

so the given number should be divisible by 11

then it is divisible by 792

there fore

5+0+A+0=9+1+B+4

A+5=B+14

by trial

A=10

B=1

A+B=10+1=11

(A-B =14-5=9

A=9+B

B=A-9)