Question : A person covers the first 26 km in 60 minutes and the next 34 km in 30 minutes. What is his average speed for the whole journey?
Option 1: 40 km/hr
Option 2: 46 km/hr
Option 3: 32 km/hr
Option 4: 38 km/hr
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Correct Answer: 40 km/hr
Solution : We know, Average Speed = $\frac{\text{Total Distance}}{\text{Total Time}}$ = $\frac{26+34}{1 +0.5}$ [Total time = 60 minutes + 30 minutes = 1.5 hours] = $\frac{60}{1.5}$ = 40 km/hr Hence, the correct answer is 40 km/hr.
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Question : A person covers the first 25 km in 60 minutes and the next 38 km in 30 minutes. What is his average speed for the whole journey?
Question : A person covers the first 30 km in 60 minutes and the next 40 km in 30 minutes. What is his average speed for the whole journey?
Question : A person covers the first 15 km in 60 minutes and the next 24 km in 30 minutes. What is his average speed for the whole journey?
Question : A person covers the first 35 km in 60 minutes and the next 40 km in 30 minutes. What is his average speed for the whole journey?
Question : A man covers half part of a certain distance at 60 km/hr. He covers 40% of the remaining distance at the speed of 12 km/hr and covers the rest of the distance at the speed of 18 km/hr. What is his average speed for the entire journey?
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