Answer this detective question.... anyone?

A woman, while at the funeral of her own mother, met this guy whom she did not know. She thought this guy was amazing, so much her dream guy she believed him to be, that she fell in love with him right there but never asked for his number and could not find him. A few days later she killed her sister.

Question: What is her motive in killing her sister?

Solution to Bjorn's question.

The question.

Since no one is willing to post their solutions, I will reveal the answers.

Read carefully, your Guru speaks!

Firstly, the calculation is erroneous. I am using a counter-example,

You should not do 3 x $9 + $2 = $29.
What if the owner gave back $10 and the bellboy pocketed $1, leaving $9 to be shared among the three? Each will get $3 back, hence each paid only $7.
3 x $7 + $1 = $22. What happened to the $8?

In fact, we should look at only the cost of the room.
In the original question, the room cost $25. $25 = 3 x $9 - $2 (each paid $9 and $25 goes to the room, $2 to the bellboy)

In my counter example, the room cost $20. $20 = 3 x $7 - $1

See?

class radio??

i m trying to make a class radio station to play some songs or something...
the link will b post as soon as possible
and those who wan to help with the radio station can post a comment

EDIT:this is the link to the radio www.4n1radio.blogspot.com
u need to download an add on,plug-in to listen

btw this radio will onli be playing music for the time being because i dont have a mic..
this radio station is also recruiting ppl to take over... if u wan to help u can post a comment

NOTE: the radio will onli b playing song when i m online , but dun worry i will be online most of the time

try this question i found^^

this blog no ppl post things de... so i start posting first

* 3 guys rented a hotel room that cost RM30 per night. So the 3 guys paid RM30 to the cashier.
* Which means, each of them coughed up RM10 to pay for it.
* However, the hotel was having some sort of promotion that night, and the room only cost RM25 per night.
* So the cashier handed over RM5 to a bellboy asking him to refund the 3 guys.
* Out of greed, the bellboy secretly pocket RM2 out of the RM5, and then returned RM3 to the 3 guys.
* Having returned RM3, each guy then took back RM1.
* So, in total, each guy paid RM9.


Here's the equation:

Each guy paid RM9.
RM9 x 3 = RM27

The bellboy pocket RM2.
RM27 + RM2 = RM29

So where did the remaining RM1 go?

As Requested by Arif

Dear Arif and all 4N1s (2009), to ask questions regarding a particular topic, you need to create a new post and preferably if you can , type the question here or embed the question as a picture file. Then I will give tips as comments.

anyway, here are the clues to Set A Q4-5







Can you see the patterns? For more info., refer to ch. 6 of your textbook.

E Math Holiday Homework

Complete all the following questions from your 4A Math textbook. Show all your workings neatly and clearly on fullscap paper and hand them in on the first day of school.

Ex. 3.1 (p.64-66)

Q2, Q4, Q7, Q8, Q9, Q10, Q11

Ex. 3.2 (p.71-72)

Q1-6

Ex. 3.3 (p. 74-77)

Q1, Q3, Q5, Q7, Q10, Q11

Ex. 3.4 (p. 83-86)

Q1, Q2, Q3, Q5, Q7-10

Additional Math Homework

There are 3 sets of holiday assignment.
Do them neatly on fullscap paper. They will be collected on 1st day of school 2009.


Set A:
Complete all the following questions.
You may either copy and print out the questions, or copy the questions.

Q1 Solve the simultaneous equations:



Q2

Q3

Q4 Solve 4x^3 + 3x^2 - 16x - 12=0

Q5 Write down and simplify the first 5 terms of the binomial expansion (5x-3)^8.


Set B
All the questions are from your textbook.
ME 7 p. 161-163
Q1, Q2, Q8
ME 10 p. 217-219
Q1, Q2, Q6

Set C
All the questions are from your textbook.
ME 12 p. 268-271
Q3, Q8, Q11

RE5 p. 134-135
Q1, Q3, Q5

If you have difficulties solving the questions, please post your queries here.
I will try my best to answer your questions.
Please ask your questions by 20Dec so that I have time to answer.