Question

the radius of wheel of a bus is 0.70 m how many revolution will it make in covering 22 km

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Given that : Radius of wheel of bus = 0.70 m

As we know that : Circumference of Circle = 2πr

Now, Circumference of Circle :

$2 \times \frac{22}{7} \times 0.70 \\ \\ = > 4.4 \: m$

We have to find how many revolutions to make in covering 22 km = 22000 m

[ As we know that : 1 km = 1000 m ]

Let, x revolutions make in covering 22000 m

Now, according to the question :

$x \times 4.4 = 22000 \\ \\ = > x = \frac{22000}{4.4} \\ \\ = > x = 5000$

So, there are 5000 revolutions to make in covering the given distance.