Question

The hour and minute hands of a clock are $4.2cm$ and $7cm$ long, respectively. Find the sum of the distance covered by their tips in $2$ days.

Answer 1

In two days hour hand revolves $4$ times,

$\Rightarrow$ Distance covered $=4\times 2\times \frac{22}{7}\times 4.2$

$=105.8cm$

In two days minute hand revolved $48$ times.

$\Rightarrow$ Distance covered $=48\times 2\times \frac{22}{7}\times 7$

$=2112cm.$

Hence, the answer is $2112cm.$