The distance travelled by a person varies directly with the duration of the journey.  If the person travels 728 km in 13 hours, in how many hours will the person cover 1064 km?

15 19 23 34

19

When speed is constant then distance is directly proportional to time. Hence, Speed in both case is same, therefore, ⇒ \(\frac{728}{13}\) = \(\frac{1064}{T}\) ⇒ T = \(\frac{1064}{56}\) ⇒ T = 19 hours