Mr Kumar drove for 6 h 15 min from his house to Green Valley Shopping Mall. He spent 2 h 45 min at the mall and left the mall at 5 p.m. What time did he start driving from his house? Answer : ___

1. Calculate the total time spent driving and at the mall

$\text{Total duration} = 6\text{ h } 15\text{ min} + 2\text{ h } 45\text{ min} = 9\text{ h}$

2. Work backwards from the time he left the mall to find the start time

$5\text{ p.m.} - 9\text{ hours} = 8\text{ a.m.}$