Last visit was: 21 Dec 2024, 22:54 It is currently 21 Dec 2024, 22:54

Close

GRE Prep 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
Your Progress

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

Practice
Pays

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Verbal Expert
Joined: 18 Apr 2015
Posts: 30448
Own Kudos [?]: 36808 [8]
Given Kudos: 26096
Send PM
avatar
Manager
Manager
Joined: 08 Dec 2018
Posts: 94
Own Kudos [?]: 70 [4]
Given Kudos: 0
Send PM
avatar
Intern
Intern
Joined: 01 Apr 2022
Posts: 11
Own Kudos [?]: 0 [0]
Given Kudos: 1
Send PM
Verbal Expert
Joined: 18 Apr 2015
Posts: 30448
Own Kudos [?]: 36808 [1]
Given Kudos: 26096
Send PM
Re: Two alloys A and B are composed of two basic elements. The r [#permalink]
Expert Reply
1
Bookmarks
OE


Quote:
The new alloy X is formed from the two alloys A and B in the ratio 4 : 3. Hence, 7 parts of the alloy contains 4 parts of alloy A and 3 parts of alloy B. Let 7x ounces of alloy X contain 4x ounces of alloy A and 3x ounces of alloy B. Now, alloy A is formed of the two basic elements mentioned in the ratio 5 : 3. Hence, 4x ounces of alloy A contains 5/5+3*4x=5x/2 ounces of first basic element and 3/5+3=*4x=3x/2 ounces of the second basic
element.

Also, alloy B is formed of the two basic elements mentioned in the ratio 1 : 2. Hence, let the 3x ounces of alloy A contain 1/1+2*3x=x ounces of the first basic element and 2/2+1*3x=2x ounces of the second basic element.

Then the total compositions of the two basic elements in the 7 x ounces of alloy X would contain 5x/2 ounces (from A) + x ounces (from B) = 7x/2 ounces of first basic element, and 3/2 x (from A) + 2x (from B) = 7x/2 ounces of the second basic element. Hence, the composition of the two basic elements in alloy X is 7x/2 : 7x/2 = 1 : 1. The answer is (A).
Prep Club for GRE Bot
Re: Two alloys A and B are composed of two basic elements. The r [#permalink]
Moderators:
GRE Instructor
88 posts
GRE Forum Moderator
37 posts
Moderator
1115 posts
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne