Question

Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now.

Which of the following equations could be used to solve the problem?
3x + 2x
x + 6 = 2(3x + 6)
3x + 6 = 2(x + 6)
3x + 6 = 2x + 6

Answer 1

The answer is C. 3 x + 6 = 2( x + 6)

Answer 2

In order to find out which equation can be used to solve the given problem, let us analyze the problem first.
Let x be the age of Sara.
So ralph = 3x
In six years (+6) Ralph = 2x
Now, find the age.
So, the correct equation would be this: 3x+6=2(x+6)
The answer is the third option.
Hope this is the answer that you are looking for.