When it is 4:00 a. m. in Halifax, it is 1:00 p. m. in Karachi, and when it is 9:00 a. m. in Karachi, it is 5:00 a. m. in Warsaw. Mary left Halifax to fly to Karachi, but she accidentally left her watch on Warsaw time. According to Mary's watch, she left Halifax at 9:40 p. m. on Monday. The local time when she arrived at Karachi was 3:00 p. m. Tuesday. How long was Mary's flight?

Question

Felix Huynh

Mathematics

23 July, 03:34

When it is 4:00 a. m. in Halifax, it is 1:00 p. m. in Karachi, and when it is 9:00 a. m. in Karachi, it is 5:00 a. m. in Warsaw. Mary left Halifax to fly to Karachi, but she accidentally left her watch on Warsaw time. According to Mary's watch, she left Halifax at 9:40 p. m. on Monday. The local time when she arrived at Karachi was 3:00 p. m. Tuesday. How long was Mary's flight?

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Answers (1)

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Hillary Hunter · Answer 1

Her flight was 9 hours and 20 minutes.

Since 9 A. M. Karachi time is the same as 5 A. M. Warsaw time, we can take the time on her watch, Warsaw time, and subtract 4 to get the Karachi time.

Her watch said she left at 9:40 A. M. This is Warsaw time.

9:40 - 4 = 5:40 Karachi time.

Her flight took from 5:40 A. M. Karachi time to 3:00 P. M. Karachi time. This is 9 hours and 20 minutes.