Question

a park is 1500 metre long and 750 metre wide a cyclist has to take 4 rounds of this park how much time will take at the speed of 4.5 km per hour​

Answer 1

Answer:

A park is 1500 metres long and 750 metres  wide. A cyclist has to take four rounds of  this park.  he will take 4 hours to complete the four rounds.

Step-by-step explanation:

To answer this question, we must first calculate the perimeter of the park.

The park is in form of a rectangle.

Perimeter of the rectangle = (Length +  Width)2

This equals to: (1500 + 750)2

= 2250 × 2 = 4500 m

The perimeter of the park is 4500 meters.

The Cyclist takes four rounds.

Four rounds is equivalent to; 4500 × 4 = 18000 meters

So, the cyclist covers a distance of 18000 meters.

Since the speed is given in km/h, we convert this distance to kilometers.

1km = 1000m

so we have: 18000/1000 = 18 km

Given speed and distance, the formula for getting time is:

Time = Distance/Speed

= 18/4.5 = 4 hours.

Answer 2

The cyclist takes 4 hours to complete this task

Explanation:-

DATA:

Length=1500m

Width=750m

Speed=4.5km/h

Time=t=?

SOL:-

The cyclist has to take 4 rounds and find out the time.

Perimeter= ( length + Width) x 2

Perimeter = (1500 + 750) x 2

Perimeter = 4500m

Total distance covered by the cyclist = 4500 x 4 = 18000m

Total distance in Km = 18000/1000 = 18.

So,  

Time  = Distance in Km / Speed.

Time = 18 / 4.5

Time = 4h