Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

1] a car covers the first half of the distance between two places at a speed of 40 km/h and the second half at 60 km/h .what is the average speed of the

car

2]a car goes from town A to another town B with a speed of 40 km/h and returns back to the town A with a speed of 60 km/h.calculate the average speed during the whole journey.

3] a girl moves with a speed of 6 km/h for 2hrs and with the speed of 4km/h for the next 3hrs. Find the average speed of the girl and the total distance moved.

The car pass the same distance... so we can use the formal 2xy/x+y in this x is avg speed 1.. and y is avg speed 2.. so 2*40*60/40+60 =4800/100 =48km/hr is answer 2nd one is also the same formate... distance are same ... so we aply the same formal and get the answers is 2*40*60/40+60 =4800/100 =48km/hr is answer

3. the girl travel 6km/hr for 2hours 4km/hr for 3hr so the distanece is 6*2=12 4*3=12 so travel the same distance so averge speed by calculating using the formala 2xy/x+y 2*6*4/6+4 =48/10 =4.8km/hr distance travel is 12+12=24km