Question : During a journey, a person travels half of the distance at a speed of 18 km/h and the remaining half of the journey at a speed of 22 km/h. What is his average speed for the entire journey?

Option 1: 21.4 km/h

Option 2: 20.2 km/h

Option 3: 19.2 km/h

Option 4: 19.8 km/h

Question : Anil completed a certain journey by car. If he covered 35% of the distance at 70 km/h, 40% of the distance at 80 km/h and the remaining distance at 50 km/h, his average speed (in km/h) for the entire journey is:

Option 1: $66 \frac{1}{6} $km/h

Option 2: $66 \frac{2}{3} $km/h

Option 3: $66 \frac{1}{3} $km/h

Option 4: $66 \frac{4}{3} $km/h

Question : If a person travels a certain distance at a speed of 10 km/h and returns through the same route at a speed of 20 km/h, then what will be the average speed during the whole journey?

Option 1: $\frac{40}{3}$ km/h

Option 2: 15 km/h

Option 3: $\frac{10}{3}$ km/h

Option 4: $\frac{20}{3}$ km/h

Question : A tourist van travels the distance of 35 km from Dehradun to Mussoorie at an average speed of 36 km/h and returns at 60 km/hr. What is the approximate average speed (in km/hr) of the tourist van for the entire journey?

Option 1: 48

Option 2: 42

Option 3: 45

Option 4: 50