Scott Woodbury-Stewart

GMAT OFFICIAL GUIDE PS – If x = 1- 3t and y = 2t – 1…

If x = 1- 3t and y = 2t – 1…

Solution:

We are given x = 1 – 3t and y = 2t – 1, and we need to determine the value for t when x = y. We should notice that both x and y are already in terms of t. Thus, we can substitute 1 – 3t for x and 2t – 1 for y in the equation x = y. This gives us:

1 – 3t = 2t – 1

2 = 5t

2/5 = t

Answer: D