It is currently 22 Jun 2017, 22:20

### 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

# There are two bars of gold-silver alloy; The first is 40%

Author Message
VP
Joined: 22 Nov 2007
Posts: 1079
There are two bars of gold-silver alloy; The first is 40% [#permalink]

### Show Tags

12 Mar 2008, 11:20
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

There are two bars of gold-silver alloy; The first is 40% gold and 60% silver,
the second is 30% gold and 79% silver. If both bars are melted into an 8 kg.
bar that is 5 parts gold and 11 parts silver, what was the weight in kilograms of
the first bar?

1 3 5 6 7
Senior Manager
Joined: 15 Aug 2007
Posts: 252
Schools: Chicago Booth

### Show Tags

12 Mar 2008, 20:00
A - 1kg

if m is the weight of 1st bar and n is the weight of 2nd bar..

For gold - 0.4m+0.3n=(5/16)*8
Given that m+n=8

Solving above, m=1, n=7
Re: gprep mixtures   [#permalink] 12 Mar 2008, 20:00
Display posts from previous: Sort by