Question

How many times a wheel of radius 42 cm must rotate to go 792 m? ​

Answer 1

Answer:

19 times

$42 \times 19 = 792$

So the answer is 19

Answer 2

Answer:

Radius = 42 CM

Wheel is rotating so we have to find out the circumference of the wheel = 2π r

using π = 22/7

2× 22/7 × 42 = 264 CM

Distance the wheel must rotate = 792 m Or

792 × 100 = 79200 CM

number of times the wheel must rotate=

79200/264 = 300 times.