During a trip, Francine traveled x percent of the total

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During a trip, Francine traveled x percent of the total [#permalink]

30 Apr 2006, 08:23

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Question Stats:

74% (02:50) correct

25% (01:23) wrong

based on 4 sessions

During a trip, Francine traveled x percent of the total distance at an average speed of 40 miles per hour and the rest of the distance at an average speed of 60 miles per hour. In terms of x, what was Francineâ€™s average speed for the entire trip?

A. (180-x)/2
B. (x+60)/4
C. (300-x)/5
D. 600/(115-x)
E. 12,000/(x+200)

OPEN DISCUSSION OF THIS QUESTION IS HERE: during-a-trip-francine-traveled-x-percent-of-the-total-94933.html

[Reveal] Spoiler: OA

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[#permalink]

30 Apr 2006, 08:55

E....

X% traveeled at 40 mph
100-X% traveeled at 60 mph

total timt taken = x/40 +(100-x)/60 = (200+x)/120

Total distance = x+(100-x) = 100

Av speed = Tot Dis/Time Taken which is E

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Re: During a trip, Francine traveled x percent of the total [#permalink]

01 Mar 2013, 03:54

What question level is this?

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Re: During a trip, Francine traveled x percent of the total [#permalink]

01 Mar 2013, 03:56

2flY wrote:

What question level is this?

~650.

OPEN DISCUSSION OF THIS QUESTION IS HERE: during-a-trip-francine-traveled-x-percent-of-the-total-94933.html
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Re: During a trip, Francine traveled x percent of the total [#permalink] 01 Mar 2013, 03:56

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During a trip, Francine traveled x percent of the total

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During a trip, Francine traveled x percent of the total

During a trip, Francine traveled x percent of the total

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