Question

3. A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next
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:

25 km will be the answer I hope so

Answer 2

Hope this helps you mate❤

b) 25km

Speed of car in first 15 minutes = 40 km/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.