Question

Hey!!! Maths genius ??

The diameter of a Bullock cart wheel is 14/3 metres . This wheel makes 10 complete revolutions per minute . What would be the speed of the cart in kilometres per hour ???

With Steps

Answer 1

diameter = 14/3

radius = 7/3

As it makes 10 complete revolution per minute

so distance traveled per minute = 2pie r × 10

= 20 pie r = 20× 22/7 × 7/3 = 146.6

Now speed = distance/time

So 146.6m in 1 minute

146.6/1000 / 1/60 km/h

146.6× 60/1000

8.79 km/h

Answer 2

Answer:

diameter = 14/3

radius = 7/3

As it makes 10 complete revolution per minute

so distance traveled per minute = 2pie r × 10

= 20 pie r = 20× 22/7 × 7/3 = 146.6

Now speed = distance/time

So 146.6m in 1 minute

146.6/1000 / 1/60 km/h

146.6× 60/1000

8.79 km/h