Question

A three digit number 3a2 is added to another three digit number 835 to give the four digit number 11b7 which is divisible by 11. Then the value of (a+b) = ?

Answer 1

Answer: a=4

              b= 7

              a+b= 4+7= 11

Step-by-step explanation

Since 11b7 is divisible by 11

           (1+7)-(1+b)=0

            hence b= 7

            1177-835=3a2

                 342= 3a2

                     a= 4

a+b= 4+7=11