24 to 12
12 to 24
Equivalence
Problem Solving Challenge!
Critical Thinking
100

18:00

6pm

100

9am

09:00

100

What is the equivalent of 2 and a half hours in minutes?

150 minutes

100

Tom watched the football game for 2 hours. If the game started at 21:25, at what time did the game end?

23:25 or 11:25pm

100

A bus leaves for Montego Bay at 4:30 p.m. It takes 1 hr. 25 min. to reach there. At what time will it reach at Montego Bay?

5:55 p.m.

200

10:00

10am

200

5pm

17:00

200

How many minutes are in 4.5 hours?

270 minutes

200

Sam took 22 min to finish his homework. If he finished his homework at 18:44, at what time did he start his homework?

18:22 or 6.22pm

200

Rebecca has taken 20 days leave from her office. Her vacation will start Monday, 16 September. On which day and date will the vacation end?

6th October Friday

300

23:30

11.30pm

300

8:30pm

20:30

300

How many hours are in 240 minutes?

4 hours

300

Linda took 32 min to bake some cookies. If she started at 12:59, at what time did she finish?

13:31 or 1.31pm

300

Kerry was 4 years 2 months old when he joined school. Today he is 11 years 1 month old. For how long has he been in school?

6 years 11 months

400

00:45

12.45am

400

7:15am

07:15

400

How many hours and minutes are there in 175 minutes?

2 hours and 55 minutes

400

Ming took 4 h 25 min to prepare for a test. If he started at 1320, at what time did he finish?

1745 or 5.45pm

400

It takes Aaron 3 hours 15 minutes to travel from A City to B City and 5 hours 25 minutes to reach C City from B City. If Aaron travels from A City to C City via B City, How much time will he take?

8 hours 40 minutes 

500

14:13

2.13pm

500

9:57

21:57

500

Fill in the missing value 1/2 hour + 1/3 hour + 1/4 hour = _____ minutes.

65

500

Mohammed spent 2 h 40 min swimming and then had a 30-minute afternoon break. If he started swimming at 13:25, at what time did he finish the break?

16:35 or 4.35pm

500

Sharon was to board a flight at 08:45 hours. Her flight was to take 5 hours 20 minutes to reach the destination, but her flight got delayed by 50 minutes. At what time will Sharon reach her destination now if there is no further delay? 

(Give your answer using 24-hour clock)

14:55 hours