Author 
Topic 

kkatie
Junior Member
USA
3 Posts 
Posted  04/19/2007 : 17:02:03

so i've been studying to take the thea test. and i'm kind of stuck on how to do question number five. any guidance would be greatly appreciated.
The first pie chart represents a company's expenditures, and the second pie chart shows a breakdown of the company's advertising expenditures. What percent of the company's expenditures is spent on radio advertising?
A. 6.3%
B. 11.7%
C. 18.0%
D. 35.0% 


Subhotosh Khan
Advanced Member
USA
9116 Posts 
Posted  04/19/2007 : 17:13:08

quote: Originally posted by kkatie
so i've been studying to take the thea test. and i'm kind of stuck on how to do question number five. any guidance would be greatly appreciated.
The first pie chart represents a company's expenditures, and the second pie chart shows a breakdown of the company's advertising expenditures. What percent of the company's expenditures is spent on radio advertising?
A. 6.3%
B. 11.7%
C. 18.0%
D. 35.0%
r = Radio expenditure = 18% of (ad expenditure) = 0.18 * a .....(1)
a = ad expenditure = 35% of (total expenditure) = 0.35 * t .....(2)
using (2) in (1)
r = 0.18 * a = 0.18 * 0.35 * t = 0.063 * t
Now finish it.... 


sahsjing
Advanced Member
USA
2399 Posts 
Posted  04/19/2007 : 19:36:27

Mental math approach: 35% of the total is used in ad, 18% of ad is used in radio. Therefore, 18% of 35% of the total is used in radio ad. 


kkatie
Junior Member
USA
3 Posts 
Posted  04/20/2007 : 18:03:39

thanks! i was thinking about it all wrong. 



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