A car travels at a uniform speed of 60 kmph for 30 minutes and then at a uniform speed of 90 kmph for the next 40 min. Calculate the total distance travelled by car in km.

To calculate the total distance traveled by the car, we need to find the distance traveled during each leg of the journey and then add them together.

First, let's calculate the distance traveled during the first 30 minutes when the car is traveling at a speed of 60 kmph.

Distance = Speed x Time Distance = 60 kmph x (30 minutes / 60 minutes per hour) Distance = 60 kmph x 0.5 hours Distance = 30 km

So, the car travels 30 km during the first 30 minutes.

Next, let's calculate the distance traveled during the next 40 minutes when the car is traveling at a speed of 90 kmph.

Distance = Speed x Time Distance = 90 kmph x (40 minutes / 60 minutes per hour) Distance = 90 kmph x 0.67 hours Distance = 60 km

Therefore, the car travels 60 km during the next 40 minutes.

To find the total distance traveled, we add the distances from both legs of the journey:

Total Distance = Distance of first leg + Distance of second leg Total Distance = 30 km + 60 km Total Distance = 90 km

So, the total distance traveled by the car is 90 km.