How much time (in minutes) will a dog take to run around a square field of side 75 m if it runs at the rate of 5 km/hr?
Answer & explanation
Correct answer: option 3
Total distance = 75 × 4 = 300 m
6 km/h = 6 × \(\frac{5 }{18}\)
= \(\frac{25 }{18}\) m/sec
Time = \(\frac{300×3 }{5}\)
= 180 sec
= 3 minutes