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 6 min.
- How long does Opal take to go school by the new MRT line?
- Opal spent the next 8 h 40 min in school before dismissal. If Opal started school at 07 45, 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 - 6 min
= 94 min - 6 min
= 88 min
= 1 h 28 min
(b)
8 h 40 min after 07 45 = 16 25
16 25 = 4.25 p.m.
Time that Opal was dismissed from school: 4.25 p.m.
Answer(s): (a) 1 h 28 min; (b) 4.25 p.m.