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

 It is currently 24 May 2015, 15:55

### 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

# In what ratio must a person mix 3 kinds of tea costing

Author Message
TAGS:
Intern
Joined: 04 Nov 2007
Posts: 48
Followers: 0

Kudos [?]: 3 [0], given: 0

In what ratio must a person mix 3 kinds of tea costing [#permalink]  09 Mar 2008, 10:03
In what ratio must a person mix 3 kinds of tea costing Rs.60/kg, Rs.75/ kg and Rs.100/kg so that the resultant mixture when sold at Rs.96/kg yields a profit of 20%?
SVP
Joined: 28 Dec 2005
Posts: 1581
Followers: 2

Kudos [?]: 88 [0], given: 2

Re: Ratio [#permalink]  09 Mar 2008, 12:44
i know how i would start, but im not sure how to set up an equation for 'profit of 20%' ...

profit = revenue - cost

revenue = 96(x+y+z) where x,y,z are the different teas

cost = 60x+75y+100z
Intern
Joined: 25 Feb 2008
Posts: 14
Followers: 0

Kudos [?]: 1 [0], given: 0

Re: Ratio [#permalink]  09 Mar 2008, 14:23
let the cost of resultant mixure be X
then, (96-X)*100/X = 20

=> 9600 - 100X = 20X

X = 80

let the ratio be x:y:z
then X = 80 = (60x+ 75y + 100z) / (x+y+z)

=> 80x + 80y + 80z = 60x + 75y+100z
=>20x + 5y = 20z

4x+y = 4z

apply this to available options. what are the available options ?
Re: Ratio   [#permalink] 09 Mar 2008, 14:23
Similar topics Replies Last post
Similar
Topics:
6 In What proportion must flour at $0.8 per pound be mixed 4 16 Aug 2014, 17:56 In what ratio must water be mixed with milk so as to make a 3 13 Mar 2014, 02:31 31 Two kinds of Vodka are mixed in the ratio 1:2 and 2:1 and 15 19 May 2011, 23:31 15 In what ratio should Solution 1 and Solution 2 be mixed to 11 31 Oct 2010, 04:20 1) The cost prices of 3 kinds of tea are 10$, 12$,16$ per 2 14 Apr 2008, 19:21
Display posts from previous: Sort by