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Truck

HI GUYS, you might help me with this question.
A total of n trucks and cars are parked in a lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pcikups, in terms of n, are parked in the lot?
I do already know that the answer is 8/15 n

by Anna-Lisa

Fri Aug 27, 2010 5:53 am
Forum: Problem Solving
Topic: Truck
Replies: 4
Views: 1731

Essentially, this method is comparing apples and oranges. It's important to remember the units of measurement. On the right-hand side of the equation, you have 300 (pages). On the left-hand side, there's the term 2x+3 (hours). I think i got tripped up on this one... I took 2x + 3 = 300 and solved f...

by Anna-Lisa

Mon Aug 23, 2010 1:17 pm
Forum: Problem Solving
Topic: Employee Task
Replies: 16
Views: 3523

puneetdua wrote:Hi Lisa -

Is the ans to Braian's Avg speed ...is 28 ?

Thnaks
Yes it is! Let me know how you did it!

by Anna-Lisa

Thu Aug 19, 2010 11:15 am
Forum: Problem Solving
Topic: Employee Task
Replies: 16
Views: 3523

Thanks, here´s already the next question, actually pretty easy. Brian read 108 pages of a novel on tuesday. On wednesday he read the remaining 192 pages, reading at the same average rate he read on tuesday. if his reading on wednesday took 3 hours longer than his reading on tuesday, what is his ave...

by Anna-Lisa

Thu Aug 19, 2010 9:18 am
Forum: Problem Solving
Topic: Employee Task
Replies: 16
Views: 3523

Thanks 43 1/3 is the right answer. that´s what i have in my answer key, but i didn´t knew before how to get there! Maybe you can explain the following task to me too! If n identical pipes can fill an x-gallon pool in t hours, then at the same rate how long will it take one such pipe to fill a y-ga...

by Anna-Lisa

Wed Aug 18, 2010 3:43 am
Forum: Problem Solving
Topic: Employee Task
Replies: 16
Views: 3523

Employee Task

Just had some problems with solving the following task, maybe you can give me an approach!
In 1955, 300 of a company´s 750 employees were women, In 1987, the company had 900 employees, 430 oh whom were women. The number of female employees increased by what percent from 1955 to 1987?
Thanks

by Anna-Lisa

Wed Aug 18, 2010 1:13 am
Forum: Problem Solving
Topic: Employee Task
Replies: 16
Views: 3523