A car covers a distance of 100 km at 40 km/h and another 150 km at 50 km/h. Find the average speed for the complete trip. MCQ with Answer and Explanation

Explanation:
When A covers 100m, B covers 90m and C covers 81m. This means in a distance where B covers 90 meters, C covers 81 meters. Therefore, B beats C by 90 - 81 = 9 meters.

Explanation:
Distance 1 = 50 * 3 = 150 km. Distance 2 = 70 * 2 = 140 km. Total distance = 290 km. Total time = 5 hours. Average speed = 290 / 5 = 58 km/h.

Explanation:
Upstream speed = 16 / 4 = 4 km/h. Upstream Speed = Speed in still water - Current speed => 4 = Speed in still water - 1 => Speed in still water = 5 km/h.