Advanced Mathematics Primary 3 Time

A National Day concert begins at 19:30 and ends at 22:05. Ahmad arrives 15 minutes before the concert begins. What time does Ahmad arrive? Give your answer in 12-hour notation.

A 7:15 p.m.
B 8:30 p.m.
C 7:30 p.m.
D 6:45 p.m.
Show Worked Solution

Worked Solution

Step 1: Find the time Ahmad arrives by subtracting 15 minutes from the concert start time. 19:30 − 15 minutes: 30 − 15 = 15 minutes, hour stays at 19. Ahmad arrives at 19:15. Step 2: Convert 19:15 to 12-hour notation. 19 − 12 = 7, and since this is an evening time, it is p.m. 19:15 = 7:15 p.m. Answer: Ahmad arrives at 7:15 p.m.

Correct answer: 7:15 p.m.

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