Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 07 Jul 2015, 18:54

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# compound interest

Author Message
TAGS:
Director
Joined: 17 Oct 2005
Posts: 938
Followers: 1

Kudos [?]: 71 [0], given: 0

compound interest [#permalink]  18 Mar 2006, 21:13
Im sure this has been asked before , cant find the link

A glass was filled with 10 ounces of water, and 0.01 ounce of the water evaporated each
day during a twenty-day period. What percent of the original amount of water
evaporated during this period?
A. 0.002%
B. 0.02%
C. 0.2%
D. 2%
E. 20%
SVP
Joined: 14 Dec 2004
Posts: 1706
Followers: 1

Kudos [?]: 59 [0], given: 0

D) 2%

(((10 - 0.01)-0.01)-0.01)-0.01..... ------ 20 times.
=10 - 20*0.01
= 9.8
Evaporated is 10 - 9.8 = 0.2

OR Directly, 20*0.01 = 0.2

0.2/10 = 2%
Manager
Joined: 12 Feb 2006
Posts: 71
Followers: 1

Kudos [?]: 2 [0], given: 0

D.. 20*0.01= 0.2
0.2/10*100% = 2%
_________________

The greater the sacrifice, the greater the Victory

Similar topics Replies Last post
Similar
Topics:
1 Exponent in Compound interest question 2 14 Oct 2014, 13:04
20 Compound Interest Problems 1 28 Jul 2014, 13:57
Compound Interest Clarification 3 06 Apr 2011, 05:41
Simple and Compound Interest 1 17 Feb 2010, 18:24
1 Compound Interest - GMAT PREP 2 31 May 2006, 15:08
Display posts from previous: Sort by