Question

The sum of the ages of Saima and her mother is 54 Her mother is 12 years more than twice as old as Saima. How old is Saima's mother?

Answer 1

sum =54 
54-12=42
her mother's age is 42

Answer 2

Let he age of Saima be x
Her mother will be 12+2x
Sum of their ages is 54
Making an equation we get,
x + 12+2x= 54
3x+12 = 54
3x = 54-12
x = 42/3
x = 14

Age of Saima is 14 years
Age of her mother is 12+2*14 = 12+28 = 40

Saima's mother is 40 years old.