It took Jerry 3 4/5 hours to get to his grandmother's house. He walked for 2/5 hour to the train station, rode on a train for 1 4/5 hours, and then took a bus. How much time did Jerry spend riding on the bus?

96 minutes or 1 3/5 hours

Step-by-step explanation:

To get this answer properly, we shall be converting any of the time fraction to minutes

The total time taken is 3 4/5 hours

1 hour is 60 minutes, 3 hours is 3 * 60 = 180 minutes

4/5 hours is 4/5 * 60 = 48 minutes

Total travel time is 48 + 180 = 228 minutes

Walking, he did for 2/5 hours = 2/5 * 60 = 24 minutes

Riding on a train took 1 4/5 hours; that would be 60 minutes plus 4/5 * 60 = 48 minutes; a total time of 108 minutes

Time spent on walking and on train would be 108 minutes + 24 minutes = 132 minutes

The time spent on train would thus be 228 - 132 = 96 minutes = 60 + 36 minutes = 1 hour + 36/60 = 1 hour + 3/5 hours = 1 3/5 hours was spent on the train