A flight takes off at 2.00 a.m. from a place at 18N 10E and landed 10 hours later at a place with co-ordinates 36N 70W. What is the local time when the plane landed?
Answers.
A) 6.00 a.m. B) 6.40 a.m. C) 7.00 a.m. D) 7.40 a.m. E) 8.00 a.m.
Time difference between places will be 4*(70+10)= 
<gadget id="calculator">4*(70+10)</gadget>
<output>320</output>
320 min=   5 hrs 20 min   as change of 1 degree in longitude cause change of 4 minutes in time.   and that change is 80 degrees here.   so when plane land. time will be = 2.00 + 10.00 -5.20 = 6.40 a.m.   ANSWER:6.40 a.m.
<result>B</result>
A flight takes off at 2.00 a.m. from a place at 18N 10E and landed 10 hours later at a place with co-ordinates 36N 70W. What is the local time when the plane landed?