CAT 2021 Time, Speed and Distance — Previous Year Question
Year
CAT 2021
Section
Quantitative
Topic
Time, Speed and Distance
Difficulty
Medium
Question
Slot-1
Four friends, Ashish, Brian, Chaitra, and Dorothy, decide to jog for 30 minutes inside a stadium with a circular running track that is 200 metres long. The friends run at different speeds. Ashish completes a lap exactly every 60 seconds. Likewise, Brian, Chaitra and Dorothy complete a lap exactly every 1 minute 30 seconds, 40 seconds and 1 minute 20 seconds respectively. The friends begin together at the start line exactly at 4 p.m. What is the total of the numbers of laps the friends would have completed when they next cross the start line together?
43
36
They will never be at the start line together again before 4:30 p.m.
47
28
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