Answer:
at 4 p.m Baghdad located at 45°E
at 8p.m Indonesia is located at x°
we have
common difference in time =8p.m-4p.m=4hours =4×60min
again
we have
4min=1°
4×60min=4×60/4=60°
since time is in p.m on both so they lie in same direction
Therefore, longitude of Indonesia=60°E.
hope this helps you. thanks