SravnaTestPrep wrote:

How many hours did Suresh travel yesterday?

(1) Yesterday, Suresh traveled from 1 A.M. to 1P.M. without a break.

(2) Yesterday, Suresh traveled half the total number of hours he traveled the day before yesterday.

Solution:

From statement 1 we know Suresh traveled for AT LEAST 12 hours yesterday. This is not sufficient by itself to answer the question

From statement 2 we know Suresh traveled for half the number of hours he traveled day before yesterday. We cannot determine the exact number of hours he traveled yesterday from this statement

But from both the statements, we can know that Suresh traveled 24 hours day before yesterday because

he traveled double the number of hours he traveled yesterday (statement 2),

which is 12 hrs(statement 1). So the number of hours he traveled day before yesterday can be determined because he could not have traveled for more time. Consequently the number of hours traveled yesterday can be determined.

So answer is choice C.

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