Algebra

We invite all community contributors to share resources that are deemed to help students beat the GMAT. We've created individual threads to match the main topics, so please select the best fit for your content carefully.
This topic has expert replies
Newbie | Next Rank: 10 Posts
Posts: 1
Joined: 29 Sep 2021

Algebra

by Myther » Wed Sep 29, 2021 5:40 am
If Bob bought 1 apple and 2 pears for $18.6, and Jerry bought 2 apples and 1 pear for $16.8, how much does 1 apple and 1 pear cost combined?

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 15869
Joined: 08 Dec 2008
Location: Vancouver, BC
Thanked: 5254 times
Followed by:1267 members
GMAT Score:770

Re: Algebra

by [email protected] » Tue Nov 02, 2021 10:58 am
Myther wrote:
Wed Sep 29, 2021 5:40 am
If Bob bought 1 apple and 2 pears for $18.6, and Jerry bought 2 apples and 1 pear for $16.8, how much does 1 apple and 1 pear cost combined?
Let A = the price of 1 apple
Let P = the price of 1 pear

Note: Our goal is to determine the value of A + P

With Bob's purchase, we can write: A + 2P = 18.60
Similarly, with Jerry's purchase, we can write: 2A + P = 16.80
Now add the two equations to get: 3A + 3P = 35.40
Divide both sides of the equation by 3 to get: A + P = 11.80

So, the combined cost of 1 apple and 1 pear cost = $11.80
Brent Hanneson - Creator of GMATPrepNow.com
Image