How long did it take X to get to his destination? I. The speed ratio between X and Y is 3 to 4. II. It takes 36 minutes for Y to arrive at the same location.
A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are necessary to answer
Answer:D
How long did it take X to get to his destination? I. The speed ratio between X and Y is 3 to 4. II. It takes 36 minutes for Y to arrive at the same location.
A. I alone sufficient while II alone not sufficient to answer B. II alone sufficient while I alone not sufficient to answer C. Either I or II alone sufficient to answer D. Both I and II are necessary to answer
Explanation: Because the X:Y speed ratio is 3:4, the time ratio will be 4:3.I. If Y takes 3 minutes, X will take 4 minutes.II. If Y takes 36 minutes, then X will take 4/3 x 36 minutes = 48 minutes.As a result, the solution is given by combining I and II.