Opal usually takes a bus from her home to school. If she leaves home at 07 00, she will reach school at 08 42. 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 18 min.
- How long does Opal take to go school by the new MRT line?
- Opal spent the next 6 h 55 min in school before dismissal. If Opal started school at 08 05, at what time was she dismissed from school? Give your answer in the 12-hour clock format.
(a)
From 07 00 to 08 42: 1 h 42 min
Duration of Opal's journey to go to school by the new MRT line
= 1 h 42 min - 18 min
= 102 min - 18 min
= 84 min
= 1 h 24 min
(b)
6 h 55 min after 08 05 = 15 00
15 00 = 3.00 p.m.
Time that Opal was dismissed from school: 3.00 p.m.
Answer(s): (a) 1 h 24 min; (b) 3.00 p.m.