BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

truck & car word problem

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 200
Joined: Thu Aug 07, 2008 5:14 pm
Thanked: 1 times

truck & car word problem

by ska7945 » Tue Aug 12, 2008 6:15 am
A certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If total revenues from car sales and truck sales in 1997 were up 1 percent from 1996, what is the ratio of revenue from car sales in 1996 to revenue from truck sales in 1996?
A. 1 : 2
B. 4 : 5
C. 1 : 1
D. 3 : 2
E. 5 : 3

provide your reasoning please.
Answer : A
let's beat GMAT.
Top
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 48
Joined: Fri Aug 08, 2008 4:44 am
Thanked: 4 times
GMAT Score:750

by santa_dem » Tue Aug 12, 2008 6:34 am
the number of cars and trucks sold in 1997, based on the 1996 numbers is:

x*(100%-11%)+y*(100%+7%)=(x+y)*(100%+1%)

where x - cars sold in 1996 and y - trucks sold in 1996.

x*89%+y*107%=x*101%+y*101%

y*(107%-101%)=x*(101%-89%)

y*6%=x*12%

x/y=6%/12%=1/2

Answer A.
Top
Post new topic Post Reply
• Page 1 of 1