Question

a car move a speed of 50 km h for 20 minutes and them with a speed of 65 km h from for the next 15 minutes find the total distance covered by the car​

Answer 1

Speed of car in first 15 minutes = 50km/h
Distance covered = speed × Time taken
60 minutes = 1 hour
15 minutes =
60
15
​
hour
Distance covered = 240×
60
15
​
=10km
Speed of car in next 15 minutes = 60 km/h
Distance covered = 60×
60
15
​
=15km
∴ Total distance covered = (10+15)km = 25 km
∴ 25 km is correct

Answer 2

Answer

Step-by-step : add 50 with 65 i.e 115 km. That's your ans.