Multiple choice

Passage

Each of the questions below consists of a question and two statements given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read all the statements and give answer.

Find the distance travelled by Rajdhani express in two hours if it travels with its original speed? I. The train started from the origin station 20.25 hours later than the scheduled time towards its destination which is 750 km away from the origin. II. To reach the destination station in the scheduled time the loco – piolet of the train increases the speed of the train to 125% of the original speed.

  1. If Statement I alone is sufficient to answer the question

  2. If Statement II alone is sufficient to answer the question

  3. If Both the Statements I and II together are needed to answer the question.

  4. Either the Statement I alone or Statement II alone is sufficient to answer the question.

  5. Both statements together are not sufficient to answer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both statements together are needed. Statement I gives delay (20.25 hours) and distance (750 km) but not speed. Statement II gives speed increase (125% of original) but not distance or delay. Together: 750/S - 750/(1.25S) = 20.25, giving original speed S, then 2-hour distance = 2S.

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