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### Discussion :: Time and Distance

1.

 How much time did X take to reach the destination? I. The ratio between the speed of X and Y is 3 : 4. II. Y takes 36 minutes to reach the same destination.
2.  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 not sufficient to answer E. Both I and II are necessary to answer

Explanation :

Since ratio of speed of X : Y is 3 : 4, then ratio of time will be 4 : 3.

I. If Y takes 3 min, then X takes 4 min.

II.   If Y takes 36 min, then X takes$$[\frac {4 } { 3 }*36]$$min= 48min

Thus, I and II together give the answer.

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