Question 1023837

Alex is 16 years old and his sister Ramie is 5 years old. In how many years will Alex be exactly twice as old as Ramie?
A)8 years B)6 years C)5 years D)10 years 
<pre>Let number of years for Alex to be twice Ramie's age, be y
We then get: 16 + y = 2(5 + y)
16 + y = 10 + 2y
y - 2y = 10 - 16
- y = - 6
y, or Number of years for Alex to be twice Ramie's age = {{{(- 6)/(- 1)}}}, or {{{highlight_green(6)}}}