If 5A72B is divided by 11, then what is the value of B - A?

3 2  1 4

1

If the number 5A72B  is divisible by 11  According to the divisibility rule of 11 Sum of odd = Sum of even  or The difference between the sum of even and odd must be equal to 0 or divisible by 11 ⇒  5 + 7 + B = A + 2 B - A = - 10 or 11 - 10 = 1