Target Test Prep 20% Off Flash Sale is on! Code: FLASH20

Redeem
Target Test Prep
5-Day Free Trial
5-day free, full-access trial TTP

Available with Beat the GMAT members only code

MORE DETAILS
Target Test Prep
Magoosh
Magoosh
Study with Magoosh GMAT prep

Available with Beat the GMAT members only code

MORE DETAILS
Magoosh

stamp question

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 33
Joined: Sat Apr 14, 2007 8:29 am

stamp question

by ns88 » Mon May 07, 2007 10:11 am
The price of postage stamps has increased 5 cents per year
every year since 1990. If 10 stamps were purchased every
year from 1998 to 2002, the total cost would be $35. How
much did a stamp cost in 1995?

A. 45 cents
B. 35 cents
C. 40 cents
D. 48 cents
E. 52 cents


OA coming after some solutions
Top
Senior | Next Rank: 100 Posts
Posts: 46
Joined: Sun Mar 04, 2007 6:27 am

by Tame the CAT » Mon May 07, 2007 6:55 pm
The cost from increases by 5 cents per year so the setup is pretty easy

10x+10(x+5)+10(x+10)+10(x+15)+10(x+20) = 3500

50x+500 = 3500

x=60 <---- cost in 1998

so A must be the answer.
Top
Legendary Member
Posts: 559
Joined: Tue Mar 27, 2007 1:29 am
Thanked: 5 times
Followed by:2 members

by Cybermusings » Tue May 08, 2007 2:19 am
Answer should be 45 cents
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 400
Joined: Sat Mar 10, 2007 4:04 am
Thanked: 1 times
Followed by:1 members

by f2001290 » Tue May 08, 2007 6:33 am
45 cents
Top
Senior | Next Rank: 100 Posts
Posts: 33
Joined: Sat Apr 14, 2007 8:29 am

by ns88 » Tue May 08, 2007 10:41 am
OA is A, 45 cents.
Top
Post new topic Post Reply
• Page 1 of 1