Sign Up!
Login
Welcome to Test-paper.info
Friday, November 17 2017 @ 05:01 PM CST
 Forum Index >  Test Paper Related >  Primary 6 Matters
 Primart 6 Math Que #3 (Ratio) - Help
   |  Printable Version
By: adilah9 (offline)  Saturday, February 04 2012 @ 10:27 PM CST (Read 813 times)  
adilah9

The ratio of Alan's money to Bob's money was 2:1.
After Alan saved another $60 and Bob spent $150, the ratio became 4:1.
How much money did Alan have at first?

Forum Newbie
Newbie

Registered: 09/19/11
Posts: 12

Profile Email    
   
By: awyw1201 (offline)  Sunday, February 05 2012 @ 06:36 AM CST  
awyw1201

Quote by: adilah9

The ratio of Alan's money to Bob's money was 2:1.
After Alan saved another $60 and Bob spent $150, the ratio became 4:1.
How much money did Alan have at first?




Use units and parts

Ratio at 1st----2u:1u
Ratio after----4p:1p

2u + 60 = 4p----(1)
1u - 150 = 1p----(2)

(2) x 4---- 4u - 600 = 4p----(3)

Compare (1) and (3), we have
2u + 60 = 4u - 600
2u = 660


Ans: $660


Big Grin

Forum Regular Member
Regular Member

Registered: 07/08/11
Posts: 87

Profile Email    
   


 All times are CST. The time is now 05:01 pm.
Normal Topic Normal Topic
Locked Topic Locked Topic
Sticky Topic Sticky Topic
New Post New Post
Sticky Topic w/ New Post Sticky Topic w/ New Post
Locked Topic w/ New Post Locked Topic w/ New Post
View Anonymous Posts 
Able to Post 
HTML Allowed 
Censored Content