Question

A person walks at a rate of 4 kilometre per hour how long will he take to go around a square Park 5 times whose area is 2500m.2500m

Answer 1

Answer:

3 hour 7 minute 30 seconds

4000 meter = 3600 seconds

1 meter = 3600/4000 seconds

12500 meters = 3600/4000*12500=90*125=11250 seconds

11250 seconds = 3 hour 7 minutes 30 seconds

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Answer 2

Given,

Speed of the Person is 4km/hr

Or, 4000m/hour

Area of the park = 2500m^2

Therefore side of the park=

$\sqrt{2500}$

=50m

Perimeter of a square = 4(side)

=> (4 × 50)m

=200m.

Distance to be covered = 5 times the area of the perimeter of the park

Therefore, (5 × 200)m

= 1000m

We have to find the time taken by him to cover 1000m.

The time taken in minutes

We know that,

$speed \: = \: \frac{distance}{time}$

Therefore,

Time = Distance/Speed

= (1000/4000)hours

=$\frac{1}{4}$

hour

= 1/4 of 60 minutes

= 15 minutes.

That's your answer ...

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