Subject: General Aptitude · Chapter: Area · Exam: · Marks: · Difficulty:
A wheel makes 1000 revolutions in covering a distance of 88 km. Find the radius of the wheel.
Answer
Answer (as printed):
Explanation
Distance covered in one revolution $=\left(\frac{88\times1000}{1000}\right)$ m $=88$ m. $$\therefore 2\pi R=88 \Leftrightarrow 2\times\frac{22}{7}\times R=88 \Leftrightarrow R=\left(88\times\frac{7}{44}\right)=14\text{ m}.$$
Explanation as extracted from the printed page; notation may be imperfect.