Question

solve the question I will mark you brain.....​

Answer 1

Answer:

he will cover 700meter in 2 mins 20 sec.

Step-by-step explanation:

1 min =60 secs. he complete 200m in 40 sec.

2 min. = 120 sec+20 sec=140 sec.

700 metre =answer

see 40×3=120 =600 metre

20 sec.=100metre

so, 600+100=700 metre

Answer 2

Given:

Diameter of the track = 200 m

Time taken to cover = 40s

To Find:

The distance covered in 2 min 20 s

Solution:

Find the length of the circular track:

Circumference = πD

Circumference = 200π m

Find the total time taken in seconds:

2 min 20s = (2 x 60) + 20 s

2 min 20s = 140 s

Find the distance covered:

40 s =200π  m

1 s = 200π  ÷ 40

1 s = 5π m

1 s = 5π m

140 s = 5π x 140

140s = 700π

140s = 2200 m

Answer: The distance covered is 2200m