Irene usually takes a bus from her home to school. If she leaves home at 07 00, she will reach school at 08 49. Last week, a new MRT line has opened and she can take the train directly from home to school instead. This will shorten her journey by 22 min.
- How long does Irene take to go school by the new MRT line?
- Irene spent the next 7 h 25 min in school before dismissal. If Irene started school at 08 55, at what time was she dismissed from school? Give your answer in the 12-hour clock format.
(a)
From 07 00 to 08 49: 1 h 49 min
Duration of Irene's journey to go to school by the new MRT line
= 1 h 49 min - 22 min
= 109 min - 22 min
= 87 min
= 1 h 27 min
(b)
7 h 25 min after 08 55 = 16 20
16 20 = 4.20 p.m.
Time that Irene was dismissed from school: 4.20 p.m.
Answer(s): (a) 1 h 27 min; (b) 4.20 p.m.