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three friends a,b,c run around a circular track of length
120m at a speed of 5,7,15m/sec respectively starting
simultaneously from the same point in the same
direction .how often they three will meet????
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Answer Posted / nisha
Time taken by 'a' to cover a circular track = 120/5 = 24
seconds
Time taken by 'b' to cover a circular track = 120/7 seconds
Time taken by 'c' to cover a circular track = 120/15 = 8
seconds
LCM of 24, 8, 120/7 = 120/7seconds = ~ 17 seconds
So the three friends will meet after ~17 seconds
| Is This Answer Correct ? | 6 Yes | 11 No |
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