Problema Solution
Nila is now 6 years old. Three years ago, her brother Ricky was twice as old as she. Write Ricky's age ten years from now in terms of x.
Answer provided by our tutors
Let 'x' represent Ricky's present age.
3 years ago Ricky was: x - 3 years old
3 years ago Nila was: 6 - 3 = 3 years old
x - 3 = 2(6 - 3)
x - 3 = 2*3
x = 6 + 3
x = 9 years
Ricky's age ten years from now is: x + 10 = 9 + 10 = 19 years.