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.
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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