Question

If 7251a93 is a multiple of 11, where 'a' is a digit, what might be the value of a ?​

Answer 1

Answer:

{ sum of odd no. and even no. is 0 or multiple of 11 }

7+5+a+3 = 15+a

2+1+9 = 12

Now, 15+19 [a=19]

= 34

A.T.Q ,

34-12 = 22