Question : A car covers the first 210 km at a speed of 70 km/h, it covers the next 170 km at a speed of 85 km/h. What is its average speed?

Option 1: 72 km/h

Option 2: 76 km/h

Option 3: 74 km/h

Option 4: 68 km/h

Question : A car covered the first 100 km at a speed of 50 km/h. It covered the next 140 km at a speed of 70 km/h. What is its average speed?

Option 1: 60 km/h

Option 2: 62 km/h

Option 3: 58 km/h

Option 4: 64 km/h

Question : A truck covers three equal distances of 100 km at the speeds of 200 km/hr, 300 km/hr, and 600 km/hr. Find the average speed of the truck for the whole journey.

Option 1: 250 km/h

Option 2: 300 km/h

Option 3: 366.66 km/h

Option 4: 327 km/h