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A tourist took 1h 20 minutes to travel by an aircraft from town T#(3^0S, 35^0E)# to town U#(9^0N, 35^0E)#. (Take the radius of the earth to be 6370km and #pi=22/7#
(a) Find the average speed of the aircraft.
(b) After staying at town U for 30minutes, the tourist took a second
aircraft to town V#(9^0N, 5^0E)#. The average speed of the second aircraft was 90% that of the first aircraft. Determine the time, to the nearest minute, the aircraft took to travel from U to V.
(c) When journey started at town T, the local time was 0700h. Find the