Sign Up!
Login
Welcome to Test-paper.info
Monday, December 11 2017 @ 03:07 PM CST
 Forum Index >  Test Paper Related >  Primary 6 Matters
 Ratio question
   |  Printable Version
By: Strawberry (offline)  Sunday, February 05 2012 @ 08:42 PM CST (Read 1269 times)  
Strawberry

The ratio of number of muffins to the number of pies in a bakery was 4:1. After another 63 muffins and 46 pies were baked, the ratio became 3:1. How many muffins and pies were there in the bakery at first?

Forum Regular Member
Regular Member

Registered: 01/31/09
Posts: 83

Profile Email    
   
By: josephine_ng (offline)  Sunday, February 05 2012 @ 11:34 PM CST  
josephine_ng

300 muffins and 75 pies

Forum Newbie
Newbie

Registered: 02/05/12
Posts: 2

Profile Email    
   
By: awyw1201 (offline)  Monday, February 06 2012 @ 12:40 AM CST  
awyw1201

Quote by: Strawberry

The ratio of number of muffins to the number of pies in a bakery was 4:1. After another 63 muffins and 46 pies were baked, the ratio became 3:1. How many muffins and pies were there in the bakery at first?



Use units and parts,

Ratio at 1st---4u:1u
Ratio after---3p:1p

4u +63 = 3p----(1)
1u + 46 = 1p---(2)

(2) x 3---- 3u + 138 = 3p---(3)

Compare (1) and (3), we have
4u + 63 = 3u + 138
1u = 138 -63 =75 (pies)
4u = 75 x 4 =300 (muffins)

Ans: 300 muffins and 75 pies



Big Grin

Forum Regular Member
Regular Member

Registered: 07/08/11
Posts: 87

Profile Email    
   
By: Strawberry (offline)  Monday, February 06 2012 @ 05:32 AM CST  
Strawberry

Thank you... finally, I understand why

Forum Regular Member
Regular Member

Registered: 01/31/09
Posts: 83

Profile Email    
   
By: awyw1201 (offline)  Monday, February 06 2012 @ 10:14 AM CST  
awyw1201

Great! Happy for u:-)

Forum Regular Member
Regular Member

Registered: 07/08/11
Posts: 87

Profile Email    
   


 All times are CST. The time is now 03:07 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