Question

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the na 15 minutes. The total distance covered by the car is: (a) 100 km (b) 25 km (c) 15 km (d) 10 km ​

Answer 1

Answer:

100

Step-by-step explanation:

because 40 +60 =100 it means option a is correct

Answer 2

Correct answer (b) 25km
Explanation:

Speed of car in first 15 minutes =40km/h
Distance covered = speed * time taken
60 minutes= 1 hour

15 minutes= 15/60 hours

Distance coverd= 240*15/60= 10km

Speed of car in next 15 minutes= 60km/h
Distance covered = 60*15/60= 15 km
Total distance (10+15)= 25km

25km is correct


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