|By Akaflex (Akaflex) on Wednesday, October 01, 2003 - 04:31 pm: Edit|
Concentration of Radios in 5 Countries
Country/Total # of Radios/Radios Per 100persons
A /500 Million /200
B /150 Mil. / 50
C / 75 Mil. / 75
D /40 Mil. / 8
E /20 Mil. /100
According to the table which of the give countries has the largest population?
Can sum1 explain PELASE
|By Fairyofwind (Fairyofwind) on Wednesday, October 01, 2003 - 04:34 pm: Edit|
This isn't math. This reminds me of the study skills portion of the CTBS test. Let's take a nice little table with some cheesy empirical data and pass it off at math.
|By Geniusash (Geniusash) on Wednesday, October 01, 2003 - 04:36 pm: Edit|
set it up this way
(x # of people)/(number of total radios)=(# of radios per 100 people)/100 people
|By Gabypa (Gabypa) on Wednesday, October 01, 2003 - 05:51 pm: Edit|
Clearly, it's D.
|By Akaflex (Akaflex) on Thursday, October 02, 2003 - 03:34 pm: Edit|
i stil dun c it i used the thing genius gave me but that doest give me D
|By Neo (Neo) on Thursday, October 02, 2003 - 04:20 pm: Edit|
Multiply the number of radios in each country by 100/(the number of radios per 100 people).
For example, Country A has 500 million radios, and 200 radios per 100 people. That means, there are twice as many radios as people in that country (or that each person, on avg. has two radios). Either way, multiply 500 x 100/200.
A has a pop. of 250 million.
D is correct because 40 mil x 100/8 gives the largest value. 40 x 25/2 = 400+100 = 500 million.
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