A car travels a certain distance with a speed of 60 km/h in 10 min and then the remaining distance at a speed of 90km/ h in the next 10 min. Calculate the total distance covered by the car.
Which of these is not a reason for soil erosion? *
1 point
Deforestation
Overgrazing
Afforestation
Flood
Answers
Answered by
0
Explanation:
Let the total distance travelled be x km Then total time taken =
10
x/3
+
20
x/3
+
60
x/3
=
30
x
+
60
x
+
180
x
=
180
6x+3x+x
=
180
10x
=
18
x
hrs Then average speed = =
Totaltimetaken
Totaldistancetravelled
=
x/18
x
km/hr = 18 km/hr
Answered by
1
Answer:
A car travels a certain distance with a speed of 60 km/h in 10 min and then the remaining distance at a speed of 90km/ h in the next 10 min. Calculate the total distance covered by the car.
Which of these is not a reason for soil erosion? *
1 point
Deforestation
Overgrazing
Afforestation
Flood
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