Question

solve 2nd one..................

Answer 1

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Answer 2

Perimeter of the ground =2(80+35)=2×115=230m
Total rounds=3
The boy had to walk =3× 230 m
Speed of boy = 1.5m/s =3/2m/s
Thus time taken =D/S =3 ×230 ×2/3 = 460 sec.
Thus the boy had to walk for 7 min 40 sec (ans.)
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