//Moderator's note: Topics merged.


Need help with these questions from my son's P4 homework:

Q1. Edward has $40 more than Fariq. If Edward gives 1/5 of his money to Fariq, Fariq will have 7/8 as much money as Edward. How much money do they have altogether?

Q2. When Janice bought some files, the average cost was $4. After she bought one more file at $16, the average cost was $7. How many files did she buy at first?

Q3. Alex's monthly salary is $80 more than Bernard's monthly salary. Every month, they spend $950 each and save the rest of their money. After a few months, Alex saved $2805 while Bernard saved $1605.
(a) How many months did Alex take to save $2805?
(b) What is the total amount of money Alex and Bernard will earn in a month?

Responses are very much appreciated.

Welcome to KiasuParents!

:welcome:

Oops. :oops:

Sorry, my bad.

1)Sum of first 2 odd numbers = 1+3 = 4

Sum of first 3 odd numbers = 1+3+5 = 9
Therefore sum of the first n odd numbers is n^2
So sum of first 210 odd numbers is 210^2= 44100

Not too sure about Q2. :?

the lists that tankee has posted are actually available on http://www.taonan.moe.edu.sg/

oh i thought it was a public search! :lol: :oops:

OMG! i almost choked on my lunch looking at the pic Chief posted

which search engine are you using? most search engines like google, yahoo, msn etc. use crawling machines which look for matching title or words. try searching with more specific terms. the above is from my experience. sometimes these searches can really make me :stupid: [/i]

hmm... maybe once you refer a friend and he/she clicks on the referral link, he/she will automatically be your buddy and you will also be his/her buddy? :?

I think that Buddies refers to people that you add as a buddy, while Buddies of refers to the people that add you as a buddy


Correct me if I'm wrong :idea: