PROBLEM SOLVING

Andrea's flight to Korea was scheduled at 6:15 A.M. However, the flight was delayed and the plane took off 1 hour and 30 minutes later. She arrived at the Korea Airport at 5:05 PM. How

long was the flight?

a. 10 hrs & 40 min.

b. 10 hrs & 50 min.

C. 8 hrs & 10 min.

d. 9 hrs & 20 min.

ANSWER⤵

||D.9 Hrs and 20 min||

Explanation•

∆ The flight delayed at 1 hour and 30 minutes and will be took off at 6:15

➡6:15+1:30= 7:45

∆ Convert the time to minutes

• 7:45 to words means 7 hours and 45 minutes.
• 1 hour consist - 60 minutes

∆ Solve

• 7:45 - 7×60+45 = 465 m/minutes

∆ She arrived to Korea at 5;05 so compute:

• 17×60+5 = 1025 Minutes
• Since 5:00 is 17:00 to 24-hour time
• 1 pm = 13:00
• 2 pm = 14:00
• 3 pm = 15:00
• 4 pm = 16:00
• 5 pm = 17:00

∆ So, the flight is 9 hours and 20 minutes

• 1025-465= 560 minutes
• 560= 9 hours and 20 minutes

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