Question

The radius of a cycle wheel is 35 cm. What is the number of turns required to cover a distance of 1540 m?

• A. 600
• B. 700
• C. 800
• D. 900

Answer 1

The correct option is B 700

Given-
Radius of the wheel = $35cm$
Distance to be covered = $1540m$
Distance covered in one turn of the wheel = circumference of the wheel
Circumference of the wheel= $2\pi$r
=$2\times \frac{22}{7}\times 35$
= $220cm$
Distance covered in one turn of the wheel =$220cm$=$2.2m$
Number of turns needed to cover $1540m$ = $\frac{1540}{2.2}$
= 700 turns.