A plane flies 50 km north, 120 km east, 50 km south. How far is it from start? MCQ with Answer and Explanation

Explanation:
√(5²+12²)=13 km.

Explanation:
He turns right (facing South) and walks 20 m. Turns left (facing East) and walks 15 m. Faces West and walks 25 m, making him 10 m West of his starting longitude (15 - 25 = -10). He turns right (North) and walks 20 m, returning to his starting latitude. He is 10 m West of the start.

Explanation:
West 5, left (south) 5, left (east) 5 -> net south 5, west 0? Wait: west 5, then south 5, then east 5 => east-west cancel, net south 5. So south. Not an option. I'll adjust: West 5, left (south) 5, left (east) 5 -> net south 5, east 0 => south. Option not there. Change: West 5, left (south) 5, right (west) 5 -> net west 10, south 5 -> South-west. I'll set: Woman walks 5 m west, turns left walks 5 m, turns right walks 5 m. Then net west 10, south 5 -> South-west.