This problem involves both time zones and flight duration. First, find the time difference between New York (74°W) and Lusaka (30°E). We add the degrees because one is west and the other is east of the Prime Meridian: 74° + 30° = 104°. Convert this to time: 104° / 15°/hour ≈ 6.93 hours, which is 6 hours and 56 minutes (approximately 7 hours). Since Lusaka is east, its time is ahead. When it's 23:00 Tuesday in New York, it's 23:00 + 7 hours = 06:00 Wednesday in Lusaka. Now add the 15-hour flight time: 06:00 + 15 hours = 21:00 on Wednesday. Standard time zones simplify this, but the calculation is based on longitudinal difference.

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Zambia

• ivwananji siwale – 29 pts

• Mid-point of A Line
• Equation of a Straight Line
• Parallel and Perpendicular Lines
• Area of Rectilinear Figures
• Distance of A Straight Line