A car travels the first 140 km in 3 hours and the next 180 km in 5 hours. What is its average speed (in km/h) during the entire journey?
A car travels the first 140 km in 3 hours and the next 180 km in 5 hours. What is its average speed (in km/h) during the entire journey?
एक कार पहले 140 किमी की दूरी 3 घंटे में तथा अगली 180 किमी की दूरी 5 घंटे में तय करती है। पूरी यात्रा के दौरान उसकी औसत गति (किमी/घंटा) क्या होगी?
Detailed Solution & Logic
Correct Answer:
40
Total distance = 140 + 180 = 320 km.
Total time = 3 + 5 = 8 hours.
Average speed = 320 ÷ 8 = 40 km/h.
कुल दूरी = 140 + 180 = 320 किमी।
कुल समय = 3 + 5 = 8 घंटे।
औसत गति = 320 ÷ 8 = 40 किमी/घंटा।
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