Question

Two friends A and B run around a circular
track of length 510 metres, starting from the same point, simultaneously and in the same direction. A who runs faster laps B in the middle of the 5th round. If A and B were to run a 3 km race long race, how much start, in terms of distance, should A give B so that they finish the race in a dead heat?​

Answer 1

Answer:

Step-by-step explanation:

Do L.C.M. of 24 and 28 .

2 |24,28

2 |12,14

2 |6,7

3 |3,7

7 |1,7

|1,1 So least common multiple of 24 and 28 are 2×2×2×3×7=168. In 168 minutes one racing car completes 6 complete circulations and another racing car completes 7 complete circulations So they can be side-by-side again initially at where they started . Hope it helps you. Please mark me as Brainliest

Answer 2

Answer:

The correct answer is : 666.67 metres

Step-by-step explanation:

A and B were running in a circular track and A overtook B in the middle of the fifth lap. This means that when A had completed 4.5 laps, he had covered a distance one lap greater than B. A completed 9/2 laps while B completed 7/2 laps, which is the same as A completing 9 laps and B completing 7 laps. This means that in a race of 9 laps, A can give B a head start of 2 laps. If the race is 3000 meters long, then A can give B a head start of $(2/9)*(3000) = 666.67 meters$ 666.67 meters since A can complete two laps more than B in a 9-lap race.

To learn more about distance, visit:

https://brainly.in/question/47777661

To learn more about speed, visit:

https://brainly.in/question/47561315

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