Question

The diameter of the wheel of a bus is 3.5 m. How many rounds will the wheel
need to cover the distance of 1.1 km.?
1) 10 rounds 2) 1100 rounds 3) 1000 rounds 4) 100 rounds​

Answer 1

1 rotation=2πr

=2×

7/22x35cm

=220cm

No. of rotations completed while travelling 11 km is

220cm

11km/220cm =11,000m/220cm = 11000/2.2 m

= 110000/22 = 10000/2

=5000

So while travelling 11km, 5000 rotations will be completed.

solution

Answer 2

Answer:

100 rounds

Step-by-step explanation:

Diameter = 3.5 m

C=πd

= 22/7×3.5

=11m

1 rotation= 11m

total distance covered =1.1 =1100m

no. of rounds required =1100/11

= 100 m