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DRDO Multi tasking staff Model paper 1
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© examsnet.com
Question : 67
Total: 100
Two donkeys are standing 400 meters apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?
60
80
400
40
Validate
Solution:
As per given, relative speed of first monkey with respect to the second monkey = 3 m/sec + 2m/sec = 5 m/sec
Now, distance to be covered = 400 m
∴ Time taken before the two monkeys bump into each other = 400/5 = 80
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