The number of revolutions made by a wheel of diameter 56 cm in covering a distance of 1.1 km is: · ABC26GN4571
Subject: General Aptitude · Chapter: Area
The number of revolutions made by a wheel of diameter 56 cm in covering a distance of 1.1 km is:
(a)31.25
(b)56.25
(c)62.5
(d)625
Answer
Explanation
Distance covered in 1 revolution $$=\left(2 \times \frac{22}{7} \times \frac{56}{2}\right) \mathrm{cm}=176 \mathrm{cm} .$$ Required number of revolutions $$=\left(\frac{1.1 \times 1000 \times 100}{176}\right)=625 .$$
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