in 100m race, A beats B by 10m and B beats C by 20m.By how
much distance A beats C.
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Answer Posted / anurag gour
Let Speed of A be 10m/s. Therefore, accordingly speed of B will be 9m/s.
Now time taken by B to complete the race of 100m will be:
=>100/9=11.1sec
Now in 11.1sec C has covered 80m as C is defeated by 20m.
Speed of C=80/11.1 = 7.207m/s.
Since A has covered his race in 10sec(100m/10m/s). Therefore distance covered by C in 10 sec = 7.207x10 = 72.07m or 72m.
So, A defeats C by 100-72=28m.
Answer is 28m.
| Is This Answer Correct ? | 15 Yes | 6 No |
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