Question

A person swims 100 m in the first 40s,90m in

the next 40s and 55m in the last 20s. What is

the average speed​

Answer 1

Answer:

57.5

Step-by-step explanation:

100

+40

+90

+40

+55

+20

345

  6                (divided 345 by 6)

Answer 2

Answer : 2.45 m/s

Step-by-step explanation:

Total distance covered in 40 s = 100m

Total distance covered in next 40 s = 90m

Total distance covered in last 20 s = 55m

Average Speed =

Sum Of Total Distance Covered

________________________

Sum Of Total Time Taken

Average Speed = ( 100 + 90 + 55 ) m

______________

( 40 + 40 + 20 ) s

Average Speed = 245m

____

100 s

Average Speed = 2.45 m/s

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