Answer 1

Sum of 94 and 49 is to be divided by 11

Let ab = 94
and ba = 49

∴ a = 9 and b = 4

The quotient of 94 + 49 (i.e. ab + ba)
When divided by 11 is a + b i.e. 9 + 4 = 13

`(because("ab + ba")/11 = "a + b")`