How long will a boy take to go three times round the field,if he walks at rate of 1.5 metre per second.
LENGTH = 80M
BREATH = 35M
Answers
Length = 80 m
Breadth = 35 m
First, we will find the distance covered by the boy
Distance covered = perimeter of the field
= 2( length + breadth)
= 2 ( 80 + 35 )
= 230 m
Now, the speed is given to be 1.5 m/s
We will use the formula
Speed = Distance / time
1.5 = 230 / time
time = 230 / 1.5
= 153.33 seconds
For one round the time taken is 153.33 seconds
For three round, time taken = 153.33 × 3
= 459.99 seconds
Hence, the time taken will be around 460 seconds
459.99 sec . Approximately 460 sec.
Step-by-step explanation:
Given
Length = 80 m
Breadth = 35 m
Distance covered = the perimeter of the field
=> 2(length+breadth)
=>2(80+35)
=>230 m
Speed given=1.5 m/s
Formula = Speed =DISTANCE / TIME
=> 1.5 = 230/time
=>Time = 230/1.5
=>Time = 153.33 seconds
One round = 153.33 seconds
Three round = 153.33 × 3 = 459.99 seconds
Approximately 460 seconds.
HOPE IT IS HELPFUL FOR YOU!!