CAT 1997 — QA Question 41
Basics of TSD/ProportinalityEasy
Passage / Data
Direction: Answer the questions based on the following information.
Boston is 4 hr ahead of Frankfurt and 2 hr behind India. X leaves Frankfurt at 6 p.m. on Friday and reaches Boston the next day. After waiting there for 2 hr, he leaves exactly at noon and reaches India at 1 a.m. On his return journey, he takes the same route as before, but halts at Boston for 1hr less than his previous halt there. He then proceeds to Frankfurt.
What is X's average speed for the entire journey (to and fro)?
Answer & solution
- A
176 mph
- B
180 mph
- C
165 mph
Data insufficient
Solution
We do not know the distance between Frankfurt and India and hence cannot calculate the average speed.
Hence, option (d).