Opal usually takes a bus from her home to school. If she leaves home at 08 00, she will reach school at 09 34. 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 2 min.
- How long does Opal take to go school by the new MRT line?
- Opal spent the next 7 h 15 min in school before dismissal. If Opal started school at 09 40, at what time was she dismissed from school? Give your answer in the 12-hour clock format.
(a)
From 08 00 to 09 34: 1 h 34 min
Duration of Opal's journey to go to school by the new MRT line
= 1 h 34 min - 2 min
= 94 min - 2 min
= 92 min
= 1 h 32 min
(b)
7 h 15 min after 09 40 = 16 55
16 55 = 4.55 p.m.
Time that Opal was dismissed from school: 4.55 p.m.
Answer(s): (a) 1 h 32 min; (b) 4.55 p.m.