Question

A rectangular field is 72m By 58m, metre keya walks around it at the rate of 3 km per hour how long will she take to make 3 round.

Answer 1

This should be the answer.

Answer 2

Hi there!
Here's the answer :

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Given,
The Shape of the field is Rectangle.
Perimeter of the Rectangle = 2( l + b )
where l = length of the rectangle
and b = breadth of the rectangle

As per the given data,
l = 72 m
b = 58 m

•°• Perimeter = 2(72+58) = 2×130 = 260 m

Kenya walking speed = 3 Kmph

Distance covered in 3 rounds = 3(260)
= 780 m
= 0.78 km

Distance = Speed × time
=> time = distance/speed

t = 0.78 (km/h)/3 (km) = 0.26 Hours

Expressing in minutes and seconds

0.26 × 60 = 15.6 min

0.6 × 60 = = 36 seconds

=> 0.26 Hrs = 15.6 min & 36 seconds
{Also equal to (15×60)sec + 36 sec = 900 +36 = 936 seconds}

•°• 15.6 minutes and 36 seconds ( or 936 seconds) are taken by Kenya to make 3 rounds

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