Question

The diameter of a scooter wheel is 49 cm. How many revolutions will it make in covering 616 m ? (Take $\pi =\frac{22}{7}$)

• A. 25:36
• B. 26:37
• C. 24:36
• D. 25:37

Answer 1

The correct option is B

26:37

d = 49 cm

$C=\pi d$

$=\frac{22}{\text{/}7}\times \text{/}{49}^7$

$=(22\times 7)cm$

Number of revolutions $=\frac{\text{Distance travelled}}{\text{Circumference}}$

$=\frac{616}{22\times 7}$

$=4$

Hence (B)