During the first `18 min` of a `60 min` trip, a car has an average speed of `11 ms^-1.` What should be the average speed for remaining `42 min` so that car is having an average speed of `21 ms^-1` for the entire trip?

A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes

The average speed of a car is 75 kms/hr What will be the average speed of the car if the driver decreases the average speed of the car by 40 percent?

The average speed of a bus is three-fifth the average speed of a car which cóvers 3250 Kms in 65 hours.What is the average speed of the bus?

Ratnagiri is 360 kilometres from Pavizhamala. Gopika's family travelled in a car at an average speed of 60 (km) / h . They managed only 45 (km) / h during the return trip. What is the average speed of the entire trip?

A car traveled 65% of the way from Towm A to Town B at an average speed of 65 mph. The car traveled at an average speed of v mph for the remaining part of the trip. The average speed for the entire trip was 50 mph. What is v is mph?

A 10 hr tour is made at an average speed of 40 kph. Ifduring the first half of the distance the average speed of the bus was 30 kph, what was the average speed for the second half of the trip?

A car covers a distance of 108.9 km in 1.8 hours. What is the average speed of the car?