Question

the length and breadth of a playground are 80 m and 35 M respectively how long will a boy take to go 3 times round the field if he worked at rate of 1.5 m per second

Answer 1

Given length = 80 m and breadth = 35m.

perimeter of the playground = 2(80 + 35)

                                                = 2(115)

                                               = 230.

If the distance covered in 1 round = 230m then for 3 round it will take 230 * 3 = 690 m.

Given, he worked at the rate of 1.5m/sec.

= 690/1.5

= 460 sec

= 7 minutes and 40 seconds.


Hope this helps!

Answer 2

Answer:

a ₹12600

b 7main 40

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