Question

How many times a wheel of radius 28cm, must rotate to go 325m.(pi = 22/7)​

Answer 1

Answer:

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Answer 2

Answer:

The number of revolution of wheel is 185 .

Step-by-step explanation:

Given as :

The radius of wheel = r = 28 cm = 0.28 m

The distance cover by wheel = d = 325 m

Let The number of revolution of wheel = N m/min

According to question

Circumference of wheel = c = 2 π r                 , where r = radius , π = 3.14

i.e c = 2 × 3.14 × 0.28

or,  c = 1.7584 m

Again

Number of revolution = $\dfrac{distance}{circumference}$

Or, N =  $\dfrac{325}{1.7584}$

∴   N = 184.8 ≈ 185

So, The number of revolution of wheel = N = 185

Hence, The number of revolution of wheel is 185 . Answer