WAEC Geography 2021 Papers

Concept:The Earth rotates $360^\circ$ in 24 hours, so each $1^\circ$ of longitude equals 4 minutes of time.Explanation:Accra is at longitude $0^\circ$, which is the Greenwich Meridian.The given local time is at longitude $45^\circ\text{W}$.This place is $45^\circ$ west of Accra.Time difference $= 45 \times 4 = 180$ minutes $= 3$ hours.As we move eastward, time increases.Accra lies east of $45^\circ\text{W}$.Therefore, Accra is ahead by 3 hours.Local time at Accra $= 12$ noon $+ 3$ hours $= 3$ p.m.Answer:A. 3 p.m.