A car cover first half of the distance with 60kmph and second half of the dista

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A car cover first half of the distance with 60kmph and
second half of the distance with 40kmph what is the average
speed?

Question Posted / suresh kumar

11 Answers
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A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / ranganathappa c

we know that speed=distance travelled/time taken
let the total distance travelled by the car is 2x km.
then time taken by it to cover first half is x/60 hour.
and for second half is x/40 hour.
then average speed= total distance travelled/ total time
taken.

=2x/[(x/60)+(x/40)]
=2x/[5x/120] (on simplification)
=48 kmph

Is This Answer Correct ?

195 Yes

20 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / mallikarjun angadi

1/60+1/40 = 2/x
100x = 4800
x = 4800/100
= 48kmph

Is This Answer Correct ?

92 Yes

8 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / lokanath samal

Is This Answer Correct ?

87 Yes

14 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / khushboo gambhir

using concept f harmonic mean,which is used to calculate
most of the questions regarding average speeds for different
or the same portion of distance covered with different speeds.
we get average speed=2x/((x/60)+(x/40))
we get answer,48.
statistics student must have done this prob in oral.

Is This Answer Correct ?

51 Yes

11 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / divyanshu

d/40 +d/60 =2d/a
1/40 +1/60 =2d/a
3a+2a=120 (2)
5a=240
a=240÷5
a=48km hrs

Is This Answer Correct ?

12 Yes

6 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / sonu kumar

2×60×40÷60+40=48km/h

Is This Answer Correct ?

2 Yes

1 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / pratik

48 km/hr

Is This Answer Correct ?

1 Yes

2 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / nada

Is This Answer Correct ?

2 Yes

15 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / priya chourasiya

50kmps

Is This Answer Correct ?

2 Yes

23 No

A car cover first half of the distance with 60kmph and second half of the distance with 40kmph what..

Answer / a

Is This Answer Correct ?

22 Yes

80 No

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