Each wheel of a car is of diameter 80cm. How many complete revolutions does each wheel make in 10min when the car is travelling at a speed of 66 km per hour.
4363
4375
4376
None of these
A
4363
B
None of these
C
4376
D
4375
Open in App
Solution
Verified by Toppr
Given, speed of the car is 66km/hr Therefore, Distance travelled by the car in 1hr=66km/hr =>Distance travelled by the car in 10mins=6660×10km =11km=11×1000m =11×1000×100cm Diameter of car wheel=80cm Therefore, radius of car wheel=diameter2 =802cm =40cm Therefore, Circumference of car wheel=2πr =2×227×40 =17607cm Therefore, Number of revolution made by the wheels in 10minutes=distance covered by the car in 10 minutesdistance travelled by the car when its wheel completes one revolution
=11×1000×100cm17607
=77×1000×100cm1760 =4375 revolutions.
Was this answer helpful?
13
Similar Questions
Q1
Each wheel of a car is of diameter 80cm. How many complete revolutions does each wheel make in 10min when the car is travelling at a speed of 66 km per hour.
View Solution
Q2
The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66 km per hour
View Solution
Q3
Each wheel of a car is of diameter 80cm. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66km/per hour?
View Solution
Q4
The wheels of a car are of diameter 60cm each how many complete revolution does each wheel make in 10 minutes when car is travelling at a speed of 66km per hour.
View Solution
Q5
Question 4
The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66 km per hour?