Question

10 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:
0 100 km
fu) 25 km
15 km
(iv) 10 km​

Answer 1

HeRe IS UR AnS:

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

Distance covered = speed × Time taken

60 minutes = 1 hour

15 minutes = 6015 hour

Distance covered = 240× 6015

=10km

Speed of car in next 15 minutes = 60 km/h

Distance covered = 60× 6015

=15km

∴ Total distance covered = (10+15)km = 25 km

∴ 25 km ur answer....

STuDY WELL....