Question

David's average driving speed for 5 hours journey was 55 km/h. During his first two hours of journey he drove at 60 km/h, and last two hours he drove at 50 km/h. What was his speed for the fifth hour of the Journey? 200​

Answer 1

Step-by-step explanation:

Heya!!

Here's your answer !

Average speed is 55 km/h, combined time is 5 hours,

combined distance is 275 km.

• 2 hours x speed is 60 km/h, Time is 2 hours, distance is 120km.

• 2 hours * speed is 50 km/h, Time is 2 hours, distance is 100km.

Combined distance is 220 km, time is 4 hours, average speed is 55 km/h is for above times only and does not include 5th hour.

Answer: For the 5th hour: distance 55 km, time is 1 hour, " speed is 5 km/h".