Question

The diameter of a cycle wheel is 28 cm. How many
revolutions will it make in moving 11 km?
(a) 12500
(b) 12756
(c) 12000
(d) 1750
​

Answer 1

Distance= Circumference × no of revolutions

Given D = 28 hence r= 14cm

According to our formula:-

11km(change in cm) = 2×π×14×n

See in the given pic provided....❗