Question

Mr Gomez left Singapore and drove to Kuala Lumpur for a holiday. After driving for 1 1/2 h, he stopped to rest for 20 minutes. Then he drove for another 2 1/4. If he reached Kuala Lumpur at 02:25 , at what time did he leave Singapore?

(i'm slightly confused someone help)

Answer 1

1 1/2 h = 1 h 30 min

2 1/4 = 2 h 15 min

02:25 = 2 h + 25 min

60 min = 1 h

12 h = 11 h + 1 h = 11 h + 60 min


Time spent on the travel = 1 1/2 h + 20 min + 2 1/4 h =

1 h + 30 min + 20 min + 2 h + 15 min =

3 h 65 min = 3 h + 60 min + 5 min = 4 h 5 min = 4 h + 5 min


Supose he reached Kuala Lumpur at 02:25 pm = 14:25 = 14 h + 25

14 h + 25 min - ( 4 h + 5 min ) = 14 h + 25 min - 4 h - 5 min = 10 h + 20 min = 10:20

He leave Singapore at 10:20 am

In the same way if he reached Kuala Lumpur at 02:25 am he leave
Singapore at 10:20 pm