Question

A wheel completes $3500$ revolutions to cover $22km$ distance. The diameter of the wheel is

• A. $2m$
• B. $0.5m$
• C. $1m$
• D. $1.5m$

Answer 1

Answer: (A)

$2m$

Given,

$n=3500$

$S=22km$

Lets consider, $d=$diameter of the wheel

Distance covered in one revolution $=\pi d$

Total distance covered in $n$ revolution $=\pi dn$

$\pi dn=22km$

$\pi \times d\times 3500=22\times 1000$

$d=\frac{22\times 1000}{3.14\times 3500}$

$d=2m$

The correct option is A.