a fighter plane flying horizontal at an altitude of 1.5 km with speed 720km/hr

Question : A person walks 10 km at a speed of 2.5 km/hr, then runs 10 km at a speed of 5 km/hr and then goes 30 km by bus at the speed of 30 km/hr. What is the average speed of the man?

Option 1: 9 km/hr

Option 2: 8.25 km/hr

Option 3: 7.14 km/hr

Option 4: 7 km/hr

Question : A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately:

Option 1: 10.4 km/hr

Option 2: 10.8 km/hr

Option 3: 11.0 km/hr

Option 4: 12.2 km/hr

Question : Reshma covers 45 km at a speed of 15 km/hr by bicycle, 80 km at a speed of 40 km/hr by car, and another 6 km at a speed of 2 km/hr on foot. Find her average speed for the whole journey (correct to 2 decimal places).

Option 1: 16.38 km/hr

Option 2: 43.50 km/hr

Option 3: 18.36 km/hr

Option 4: 15.25 km/hr

Question : A bus travels first 100 km at a speed of 100 km/hr. It covers the next 150 km at a speed of 90 km/hr. What is the average speed?

Option 1: 120.50 km/hr

Option 2: 93.75 km/hr

Option 3: 100.25 km/hr

Option 4: 156.25 km/hr