Question

The diameter of rear wheel of a tractor is 1.5 m for covering some distance the rear wheel completes 80 revolutions and at the same time front wheel completes 240 revolutions. Find the diameter of front wheel.

A

B

C

D

none of these

Easy

Solution

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Correct option is A)

We have 
Diameter of the rear wheel D =1.5 m
Distance covered in one revolution = circumference of the wheel = m
Now, Distance covered in 80 revolution
Let be the diameter of the front wheel.
Now, Distance covered in one revolution by front wheel m
Now, Distance covered in 240 revolution by front wheel m
Distance covered by front wheel in 240 revolution = Distance covered by rear wheel in 80 revolution

m
m

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