2. A park is 1500 m long and 750 m wide. A cyclist has to take four rounds of this park. How much time will be take at the speed of 4.5 km/ h2
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Explanation:
speed = 4.5 x 1000 / 60x60 = 4500/3600
total distance traveled= perimeter of the park x no. of rounds
= (1500+750) x 4= 9000
time = distance / speed = 9000x3600/4500
= 7200 sec = 2 hour
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