The Number of Revolutions Made By a Circular Wheel of Radius 0.7m in Rolling a Distance of 176m - Bzziii.com

The number of revolutions made by a circular wheel of radius 0.7m in rolling a distance of 176m is 

(a) 22 

(b) 24 

(c) 75 

(d) 40

(d) 40

Explanation:

Given,

          Radius = 0.7m

          Total Distance = 176m

we know that,

Distance Covered in one revolution = Circumstance of wheel = 2πr

= 2πr

= 2 x `frac{22}{7}` x 0.7

= 2 x 22 x 0.1

= 4.4m

Now,

       Number of Revolutions = `"Total Distance"/"Distance covered in 1 revolutions"`

     =`frac{176}{4.4}`

     =`frac{176}{frac{44}{10}}` 

     = `"176 x 10"/"44"`

     = 40

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CBSE Class 10 Mathematics Sample Paper-2022