Question

A car moves with a speed of 40 km/h for 5 minutes and then with a speed of 60 km/h for the next 5 minutes. The total distance covered by the car is

Answer 1

⭐ PART - 1 ⭐

⭐ PART - 1 ⭐Car's speed = 40 km/h

⭐ PART - 1 ⭐Car's speed = 40 km/hTime = 15 mins. = 0.25 hrs.

⭐ PART - 1 ⭐Car's speed = 40 km/hTime = 15 mins. = 0.25 hrs.Distance = Speed × Time = (40 × 0.25) km = 10 km.

⭐ PART - 1 ⭐Car's speed = 40 km/hTime = 15 mins. = 0.25 hrs.Distance = Speed × Time = (40 × 0.25) km = 10 km.⭐ PART - 2 ⭐

⭐ PART - 1 ⭐Car's speed = 40 km/hTime = 15 mins. = 0.25 hrs.Distance = Speed × Time = (40 × 0.25) km = 10 km.⭐ PART - 2 ⭐Car's speed = 60 km/h.

⭐ PART - 1 ⭐Car's speed = 40 km/hTime = 15 mins. = 0.25 hrs.Distance = Speed × Time = (40 × 0.25) km = 10 km.⭐ PART - 2 ⭐Car's speed = 60 km/h.Time = 15 mins. = 0.25 hrs.

⭐ PART - 1 ⭐Car's speed = 40 km/hTime = 15 mins. = 0.25 hrs.Distance = Speed × Time = (40 × 0.25) km = 10 km.⭐ PART - 2 ⭐Car's speed = 60 km/h.Time = 15 mins. = 0.25 hrs.Distance = Speed × Time = (60 × 0.25) km = 15 km.

So, Total distance travelled = (10+15) km = 25 km

Answer 2

Explanation:

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