Opal usually takes a bus from her home to school. If she leaves home at 06 00, she will reach school at 07 35. 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 4 h 15 min in school before dismissal. If Opal started school at 08 50, at what time was she dismissed from school? Give your answer in the 12-hour clock format.
(a)
From 06 00 to 07 35: 1 h 35 min
Duration of Opal's journey to go to school by the new MRT line
= 1 h 35 min - 15 min
= 95 min - 15 min
= 80 min
= 1 h 20 min
(b)
4 h 15 min after 08 50 = 13 05
13 05 = 1.05 p.m.
Time that Opal was dismissed from school: 1.05 p.m.
Answer(s): (a) 1 h 20 min; (b) 1.05 p.m.