self Maths Puzzle

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?

(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.

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self Other Question

If log 2 = 0.3010 and log 3 = 0.4771 then the value of log 4.5 is:

(a)0.6532 (b)0.7727 (c)0.3266 (d)0.3796 (e)none of these
A plane moves from a place 9N 40E to a place 9N 40W taking 8 hours to travel. If the plane had left at 10.00 a.m. then what is the local time of arrival at the destination?