Question

the length and breadth of a playground are 80 m and 35 respectively . (a) how long will a boy take to go three times round the field , if he walks at the rate of 1.5 m per second.​

Answer 1

Answer:

460m

Step-by-step explanation:

Length = 80 m

Breadth = 35 m

The time the boy takes to walk = 1.5m per second

So perimeter = 2×(L+B) = 2 × ( 80 + 35 ) =  230 m

So time taken by a boy to walk 1 time around the field = 230/1.5 =   153.33 m

so Time taken to walk 3 times around the field = 153.33 × 3= 460m estimated

So ans = 460m                                                                                                                           Hope this helps :)                          

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