Question

3 Find A and B in the addition 2AB + AB1 =B18​

Answer 1

• Consider:

=> It is given tat 2ab + ab1 = b18

=> Now place the digits according to their place value.

2 a b

+ a b 1

b 1 8

• Consider the digit at once place:

=> b+1=8

=> b = 7

• Now substitute:

=> b = 7 in a + b

=> a + 7 = 11

=> a = 4