Question

9. In a kilometer race, A beats B by 70 meters or by 4 seconds. What is the time taken by A over the course?
O 2 min
O 0.88 min
O 1 min
O 0.34 min

Answer 1

Answer:

Its B)0.88min

Step-by-step explanation:

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Answer 2

Given,

Total Distance = 1km

A beats B by 70 meters or by 4 seconds

To Find,

Time taken by A over the course =?

Solution,

Total Distance = 1km = 1000m

Distance covered by B = 1000  - 70 = 930 m

Distance covered by B in 4 seconds = 70m

Time taken by B to cover 930 m  = (4 / 70) * 930

Time taken by B to cover 930 m  = 53.1 seconds = 53.1 / 60= 0.88 min

The A has taken the same time to cover 1000m.

Hence, the time taken by A over the course is 0.88 min. Option(b) is the correct answer.