a car moves a distance of 200m . it covers the first half of the distance at speed 40km/h and second half of the distance at speed v . the average speed is 48km/h .then the value of v is
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Answered by
1
Answer:
60km/h
Explanation:
Given, Distance=200m,Speed=40km/h Average speed =48km/h
48=
40
100
+
v
100
200
⇒
40
1
+
v
1
=
24
1
⇒v=
5−3
120
=
2
120
⇒=60km/h
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a car moves a distance of 200m . it covers the first half of the distance at speed 40km/h and second half of the distance at speed v . the average speed is 48km/h .then the value of v is
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