Sign Up!
Login
Welcome to Test-paper.info
Friday, November 17 2017 @ 04:56 PM CST
 Forum Index >  Test Paper Related >  Primary 6 Matters
 P6 Maths Problem Sum - Ratio
   |  Printable Version
By: rpgwwk (offline)  Monday, March 05 2012 @ 10:36 AM CST (Read 1818 times)  
rpgwwk

Can anyone please help me?

Alex bought some apples, pears and oranges. The ratio of the number of apples to the total number of pears and oranges was
1 : 8. The ratio of the number of pears to the total number of apples and oranges was 2 : 3. Alex bought 34 more oranges than apples. What was the total number of fruits Alex bought?

Thank you! Smile

Forum Newbie
Newbie


Registered: 09/27/11
Posts: 6

Profile Email    
   
By: awyw1201 (offline)  Monday, March 05 2012 @ 09:10 PM CST  
awyw1201

In this qn, the total number of fruits remains constant in the two sets of ratio
Thus, equalise the total number of units in both sets of ratio.

A : P + O------1 : 8----(1)

P : A + O-----2 : 3----(2)

The total units in (1) is 9 and the total units in (2) is 5.
L.C.M of 9 and 5 is 45.

So, multiply (1) by 5 and (2) by 9, we have

A : P + O------5 : 40

P : A + O-----18 : 27

Thus, A- 5u, P-18u and O-22u

22-5= 17u----34
1u---2
45u--90

Ans; 90 fruits


Big Grin

Forum Regular Member
Regular Member

Registered: 07/08/11
Posts: 87

Profile Email    
   


 All times are CST. The time is now 04:56 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