Question

A body takes 4 hours to travel from place A to place B at the rate of 60 miles per hour. It then takes 2 hours to travel from B to C with 50% increased speed. Find the average speed from A to C.

Answer 1

Answer:

70 mi/hour

Step-by-step explanation:

1). The distance from A to B is 60 × 4 = 240 miles.

2). 50% increased speed is 60 × (100 + 50)% = 60 × 1.5 = 90 mi/h

3). The distance from B to C is 90 × 2 = 180 miles.

4). Total distance body traveled is 240 + 180 = 420 miles.

    Total time it takes is 4 + 2 = 6 hours

5). Average speed is v = d / t

v = 420 ÷ 6 = 70 miles per hour

Answer 2

Step-by-step explanation:

A body takes 4 hours to travel from place A to place B at the rate of 60 miles per hour. It then takes 2 hours to travel from B to C with 50% increased speed. Find the average speed from A to C.

hope it will help you