Opal usually takes a bus from her home to school. If she leaves home at 05 00, she will reach school at 06 37. 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 15 min.
- How long does Opal take to go school by the new MRT line?
- Opal spent the next 6 h 10 min in school before dismissal. If Opal started school at 08 20, at what time was she dismissed from school? Give your answer in the 12-hour clock format.
(a)
From 05 00 to 06 37: 1 h 37 min
Duration of Opal's journey to go to school by the new MRT line
= 1 h 37 min - 15 min
= 97 min - 15 min
= 82 min
= 1 h 22 min
(b)
6 h 10 min after 08 20 = 14 30
14 30 = 2.30 p.m.
Time that Opal was dismissed from school: 2.30 p.m.
Answer(s): (a) 1 h 22 min; (b) 2.30 p.m.