Sign Up!
Login
Welcome to Test-paper.info
Sunday, July 23 2017 @ 09:46 PM CDT
 Forum Index >  Test Paper Related >  Primary 6 Matters
 Maths 'Problem'
   |  Printable Version
By: achieve_goal (offline)  Friday, June 14 2013 @ 07:02 AM CDT (Read 485 times)  
achieve_goal

Hey there, kindly please help me with this question.

Nancy saved 1/5 of the total amount of money saved by Joyce, Pauline and Irene. Joyce
saved 1/4 of the total amount saved by Nancy, Pauline and Irene. Pauline saved 2/3 of
the amount saved by Joyce and Irene. Irene saved $72 more than Nancy.

a) How much did Nancy save?
b) How much did Pauline and Joyce save altogether?

Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Big Grin Smile Smile Smile Smile Smile Smile Smile Smile Smile Smile

Forum Regular Member
Regular Member


Registered: 09/14/11
Posts: 102

Profile Email    
   
By: echeewh (offline)  Friday, June 14 2013 @ 01:29 PM CDT  
echeewh

Hey there,

Following pls find my worked solution:

<Savings>

N : (J + P + I) Total -- (1)
1 : 5 *********** 6

J : (N + P + I) Total -- (2)
1 : 4 *********** 5

P : (J + I) Total -- (3)
2 : 3 ******** 5

I - J = $72

As the savings of N, J, P and I remained constant in (1), (2), (3), we have ...

(1)x5:

N : (J + P + I) Total -- (4)
5 : 25 ********* 30

(2)x6:

J : (N + P + I) Total -- (5)
6 : 24 ********* 30

(3)x5:

P : (J + I) Total -- (3)
10 : 15 ******* 25

Hence,
N = 5u; J = 6u; P = 10u; I = 25u - P - J = 25u - 10u - 6u = 9u

Given that I - J = 72, we have ...

I - J = 72
9u - 6u = 72
3u --> 72
1u --> 24

(a)
N saved = 5u --> 5 × 24 = $120

(b)
P + J saved = 10u + 6u = 16u
16u --> 16 × 24 = $384

============

Trust this helps.

Do let me know again if this is different from your <Answerkey> or if there's further clarification.

Cheers,
Edward

Forum Active Member
Active Member

Registered: 04/21/11
Posts: 623

Profile Email    
   


 All times are CDT. The time is now 09:46 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