Amina ran 3m/second and she takes a break after 2.7 kilometers. She ran for 5 more minutes and now she have a third of her jogging tracks left. How long is the jogging track?
+33653 At 3 m/s she takes 2700/3 seconds (or 15 minutes) to run 2.7km.
At the same speed for another 5 minutes she travels a further 3*5*60 = 900 metres (or 0.9 km)
Her total distance so far is 2.7 + 0.9 = 3.6 km
This is two-thirds of the length of the jogging track which is therefore 3.6*3/2 km long (or 5.4 km)
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