Welcome to Test-paper.info
Thursday, January 18 2018 @ 03:58 PM CST
 Select a Forum » General Chat » Primary 1 Matters » Primary 2 Matters » Primary 3 Matters » Primary 4 Matters » Primary 5 Matters » Primary 6 Matters » Question, Feedback and Comments » Education Classified
 Forum Index >  Test Paper Related >  Primary 5 Matters Pri 5 problem sum
 | Printable Version
 By: jennefer_06 (offline)  Saturday, March 24 2012 @ 01:55 PM CDT (Read 1268 times)
jennefer_06

I can do this with algebra. But I can't seem to solve it without algebra.

Henry and David have a ratio of 13:8. When each of them receives \$133 each. Henry have 4 times as much as David. How much does Henry have at first?

Pls help!

Newbie

Registered: 03/19/12
Posts: 3

 By: echeewh (offline)  Sunday, March 25 2012 @ 09:07 PM CDT
echeewh

Hey Jennifer,

Apply the Constant Difference concept - Difference Before is same as After

<Before>
H : D Diff
13 : 8 5

<After>
4 : 1 3

Hence, we need to multiply <Before> ratio by 3x; <After> ratio by 5x.

<Before>

H : D Diff
39 : 24 15

<After>
20 : 5 15

Notice that there is now a decrease of 19 units from each of H and D. ( I think there is some typo in your question - instead of each of them receiving \$133 each, it should be giving away \$133 each ).

So...

19u --> 133
1u --> 7

H (at first) = 39u --> 39 x 7
= \$273
=============================

Cheers

Active Member

Registered: 04/21/11
Posts: 627

 By: jennefer_06 (offline)  Wednesday, April 11 2012 @ 11:09 AM CDT
jennefer_06

Yes! I do think the question is wrong. Because it gave me a negative answer when I do it with algebra. Thanks for ur help

Newbie

Registered: 03/19/12
Posts: 3

 All times are CST. The time is now 03:58 pm.
 Normal Topic Locked Topic Sticky Topic
 New Post Sticky Topic w/ New Post Locked Topic w/ New Post
 View Anonymous Posts Able to Post HTML Allowed Censored Content