Question

a redius of a circular playground is 21mtr.one monkey cover 3mtr. in one jum and takes one minuterest in between consecutive jumps. calculate the total time of rest the monkey will take for covering the circumference of the playground

Answer 1

Answer:

43 minutes

Step-by-step explanation:

Given

Radius of the playground r = 21 m

Circumference of the playground

$=2\pi r$

$=2\times \frac{22}{7} \times 21$

$=2\times \frac{22}{7} \times 21$

$=132$ m

Since in 1 jump the monkey covers 3m

Therefore, the number of jumps made by the monkey

$=\frac{132}{3}-1$ (-1 because after the last jump the monkey would have covered the whole circumference)

$=43$

Therefore, the monkey rests for 43 times in covering the circumference of the playground

Thus, the total time of rest = $43\times 1$

                                            = 43 minutes

Hope this helps.