Question

the diameter of a wheel is 84cm how many revolution will it take to cover 792m

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Answer 1

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▶ANSWER:-

300 Revolutions.

▶ STEP-BY-STEP EXPLANATION:-

Circumference of the circle = 2πr = 84 cm.

Let x be the no. of revolutions covered within 792 m.

Now,

792 m = 792 × 100 = 79200 cm.

Therefore,

84x = 79200 cm

=> x = 79200/84 × 22/7

=> x = 300

Therefore, no. of revolutions completed within 792 m is 300.

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Answer 2

Answer:

Step-by-step explanation:

Diameter = 2r =84cm

Distance covered in one revolution = circumference =  

= 84 = 264cm

Thus, to cover a distance of 264cm, number of revolution =1

To cover a distance of 792 metres = 79200cm, number of revolutions == 300