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Boat and Stream · UPSC CDS/OTA · Question 3 of 46

Boat and Stream: Vinay fires two bullets from the same place at an interval of 12 minutes but Raju sitting in a train approaching the place hears the second report 11 minutes 30 seconds after the first. What is the approximate speed of a train (if sound travels at the speed of 330 metre per second)?

Step-by-step solution. Boat and Stream for UPSC CDS/OTA.

Topic
Boat and Stream
Subject
Mathematics
Difficulty
Medium
Solve Time
45-60 sec

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Q · Boat and StreamMedium · 45s

Vinay fires two bullets from the same place at an interval of 12 minutes but Raju sitting in a train approaching the place hears the second report 11 minutes 30 seconds after the first. What is the approximate speed of a train (if sound travels at the speed of 330 metre per second)?

TopicBoat and Stream
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min

Step-by-Step Solution

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Solution illustration 1
Final Answer: Option B - 220/7 m/s
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Vinay fires two bullets from the same place at an… - Boat and Stream (Mathematics) Solved Question