Math, asked by tanutapash, 22 days ago

The diameter of the wheel of a car is 70 cm. How many revolutions will it make to travel
1.65 km?
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Answers

Answered by mahakulkarpooja615
1

Answer:

750 revolutions

Step-by-step explanation:

Given : Diameter of wheel (D)= 70 cm

To find : Number of revolutions of wheel to travel 1.65 km distance.

Solution :

Diameter of the wheel = 70 cm

∴ Radius of wheel = \frac{D}{2}

                          = \frac{70}{2}

                          = 35 cm

Now, calculating circumference of the wheel, we have

Circumference of wheel = 2πr

                                  = 2*\frac{22}{7} *35

                                  = 220 cm

Now, the travelling distance is 1.65 km.

Converting this distance in cm, we get

1.65*1000*100 = 165000 cm

By dividing this distance in cm by circumference of wheel, we get the number of revolutions.

∴ Number of revolutions of wheel = \frac{165000}{220}

                                                = 750

∴ Wheel of car has to make 750 revolutions to travel 1.65 km distance.

                 

Answered by prachibarapatre
0

The diameter of the wheel is given

Diameter of the wheel (D)= 70 cm

We have to find the number of revolutions of the wheel to travel a 1.65 km distance.

Diameter of the wheel = 70 cm

∴ Radius of wheel = 70/2

                               =  35

First, we will calculate the circumference of the wheel,  

Circumference of wheel = 2πr

                                          = 2\times\frac{22}{7} \times 35

                                         = 220 cm

Now, the traveling distance is in km.

We will convert this distance in cm, we get

= 165000 cm

By dividing this distance in cm by the circumference of the wheel, we get the number of revolutions.

∴ Number of revolutions of wheel = \frac{165000}{220}

                                                         = 750

∴ The wheel of the car has to make 750 revolutions to travel 1.65 km distance.

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