Comments on: The Foolish Things People Do For A Sexy Maths Tutor http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor Sassy O Level Maths Tuition, Questions & Tips from Singapore's Favourite Private Tutor Wed, 24 Apr 2013 20:25:50 +0000 hourly 1 By: mathslover http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35189 mathslover Tue, 23 Feb 2010 17:50:54 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35189 Smiling 哥 (towards Loi Loi's 消失的背影)： 我都等了19年，我会等下去的！ Smiling 哥 (towards his sprawling territory viewed from the corridor, arms outstretched)：我一定要追到你！ [Freeze screen] *credits start running* Smiling 哥 (towards Loi Loi's 消失的背影)： 我都等了19年，我会等下去的！

Smiling 哥 (towards his sprawling territory viewed from the corridor, arms outstretched)：我一定要追到你！

[Freeze screen]

*credits start running*

]]> By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35183 Miss Loi Tue, 23 Feb 2010 15:03:08 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35183 <b>clarion</b>, <span class="big">追女仔</span> (chase girls) <strong class="superbig" style="font-family:arial black;">FAIL!</strong> *clack clack <span style="font-size:smaller;">clack clack clack</span> ... * clarion,

追女仔 (chase girls) FAIL!

*clack clack clack clack clack ... *

]]> By: clarion-x http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35180 clarion-x Tue, 23 Feb 2010 12:37:45 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35180 *Post note* Eh I type this continuation until I also a bit emo. Haha. *Post note*
Eh I type this continuation until I also a bit emo. Haha.

]]> By: clarion-x http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35179 clarion-x Tue, 23 Feb 2010 12:30:30 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35179 Smiling 哥 dashed out of the house at once, only to be greeted by the "clack clack" of Loi Loi's 5-inch killer heels,as it struck on the concrete flooring of the corridor. As Loi Loi's figure receded gradually into the distance, it created an unfillable vortex in Smiling 哥's heart; he stretched out his arm, hoping futilely that the fair damsel would turn around and embrace him and his feeling for her. Every "clack" that her heels made with the floor seemed to plunge into his heart like a sharp dagger. His heart bled. Profusely. But who would care about him? :( Smiling 哥 dashed out of the house at once, only to be greeted by the "clack clack" of Loi Loi's 5-inch killer heels,as it struck on the concrete flooring of the corridor. As Loi Loi's figure receded gradually into the distance, it created an unfillable vortex in Smiling 哥's heart; he stretched out his arm, hoping futilely that the fair damsel would turn around and embrace him and his feeling for her.
Every "clack" that her heels made with the floor seemed to plunge into his heart like a sharp dagger. His heart bled. Profusely. But who would care about him? :(

]]> By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35152 Miss Loi Mon, 22 Feb 2010 11:59:44 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35152 Like the scene off <a rel="external nofollow" href="http://www.youtube.com/watch?v=awskKWzjlhk" rel="nofollow">The Good, The Bad & The <del>Sexy</del> Ugly</a>, the <i>Ah Beng</i>, the Sexy Maths Tutor, and the Aunty faced each other in a Mexican-style standoff. The Chinese New Year banter had long ceased. The silence was deafening. The tense minutes seemed like hours as the seconds ticked away. The Maths Tutor's peer was intense, as she sized up the <i>Ah Beng</i> while he tossed the mandarin orange up and down with trembling fingers that betrayed his confident smile. Just moments ago, beads of sweat were forming on his forehead as he approached with trepidation this Sec One <a href="/tag/percentages" rel="nofollow">percentages</a> question which had caught out many of her students - mainly due to the absence of any given cost/selling price. She wondered who this man was as, despite a near <a href="#comment-35043" rel="nofollow">careless mistake</a> that could be attributed to exam stress, he was somehow able to know that <div class="attention"> <ul> <li> <strong>Recognize that 100% always refers to the <em>cost</em> (original) price in profit and loss statements.</strong> ⇒ Overall % profit/loss = [(total selling price − total cost price)/total cost price] × 100% ----- (1)</li> <li> Let the selling price be <var>x</var> since it's the common (and most convenient) unknown for <em>both</em> jars. Hence total selling price = $2<var>x</var>. </li> <li>Remembering once again that 100% refers to the <em>cost</em>: <ol> <li> 20% profit for Jar 1 ⇒ 120% of cost of Jar 1 = $<var>x</var> ⇒ Cost of Jar 1 = [pmath]${x/{120/100}}=${5x}/6[/pmath] </li> <li> 20% loss for Jar 2 ⇒ 80% of cost of Jar 2 = $<var>x</var> ⇒ Cost of Jar 2 = [pmath]${x/{80/100}}=${5x}/4[/pmath] </li> </ol> ∴ total cost price = [pmath]${5x}/6 + ${5x}/4 = ${25/12}x[/pmath] </li> <li> Sub the total selling price and total cost price in (1) to obtain the overall % as [pmath]{({2x - {25/12}x})/({25/12}x)} * 100% = -4%[/pmath] (−ve sign ⇒ LOSS) </li> </ul> </div> The standoff was finally broken by the Aunty ... <blockquote> AIYOO! Smiling 哥 you are sooo smart! No wonder you and my Loi Loi are together! I always knew that the pineapple tart seller has a secret crush on me! </blockquote> ... that was the cue for the maths tutor to bid everyone goodbye and leave the room abruptly. *cue for 插曲 to play again* Like the scene off The Good, The Bad & The Sexy Ugly, the Ah Beng, the Sexy Maths Tutor, and the Aunty faced each other in a Mexican-style standoff.

The Chinese New Year banter had long ceased. The silence was deafening. The tense minutes seemed like hours as the seconds ticked away.

The Maths Tutor's peer was intense, as she sized up the Ah Beng while he tossed the mandarin orange up and down with trembling fingers that betrayed his confident smile.

Just moments ago, beads of sweat were forming on his forehead as he approached with trepidation this Sec One percentages question which had caught out many of her students - mainly due to the absence of any given cost/selling price.

She wondered who this man was as, despite a near careless mistake that could be attributed to exam stress, he was somehow able to know that

  • Recognize that 100% always refers to the cost (original) price in profit and loss statements.

    ⇒ Overall % profit/loss = [(total selling price − total cost price)/total cost price] × 100% ----- (1)

  • Let the selling price be x since it's the common (and most convenient) unknown for both jars.

    Hence total selling price = $2x.

  • Remembering once again that 100% refers to the cost:

    1. 20% profit for Jar 1
      ⇒ 120% of cost of Jar 1 = $x
      ⇒ Cost of Jar 1 = ${x/{120/100}}=${5x}/6

    2. 20% loss for Jar 2
      ⇒ 80% of cost of Jar 2 = $x
      ⇒ Cost of Jar 2 = ${x/{80/100}}=${5x}/4

    ∴ total cost price = ${5x}/6 + ${5x}/4 = ${25/12}x

  • Sub the total selling price and total cost price in (1) to obtain the overall % as

    {({2x - {25/12}x})/({25/12}x)} * 100% = -4% (−ve sign ⇒ LOSS)

The standoff was finally broken by the Aunty ...

AIYOO! Smiling 哥 you are sooo smart! No wonder you and my Loi Loi are together!

I always knew that the pineapple tart seller has a secret crush on me!

... that was the cue for the maths tutor to bid everyone goodbye and leave the room abruptly.

*cue for 插曲 to play again*

]]> By: mathslover http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35086 mathslover Sat, 20 Feb 2010 12:19:54 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35086 Before the auntie could scrutinise the working further, and upon hearing what he thought was a faint snicker from his 梦中情人, he quickly snatched the working paper back. "No! No! No! Wait!" "Since [pmath]$({25x}/12)[/pmath] > $2x he made a net LOSS of [pmath]$(x/12)[/pmath]. So, using [loss / cost] x 100%, like this... [pmath]{{$(x/12)}/{$({25x}/12)}} * 100% = 4%[/pmath] He made a 4% loss. Muahahahahha!!! Now confirm correct already!" With that, he pushed the paper back across the table, conveniently helped himself to a mandarin orange out of the basket on the table, and settled back down again, grinning confidently and 光明正大地盯着他心里的她。。。 Before the auntie could scrutinise the working further, and upon hearing what he thought was a faint snicker from his 梦中情人, he quickly snatched the working paper back.

"No! No! No! Wait!"

"Since $({25x}/12) > $2x he made a net LOSS of $(x/12).

So, using [loss / cost] x 100%, like this...

{{$(x/12)}/{$({25x}/12)}} * 100% = 4%

He made a 4% loss. Muahahahahha!!!

Now confirm correct already!"

With that, he pushed the paper back across the table, conveniently helped himself to a mandarin orange out of the basket on the table, and settled back down again, grinning confidently and 光明正大地盯着他心里的她。。。

]]> By: clarion-x http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35078 clarion-x Sat, 20 Feb 2010 09:30:19 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35078 *Likes this!* *Likes this!*

]]> By: mathslover http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35043 mathslover Fri, 19 Feb 2010 15:06:41 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-35043 The fierce glance from the angry maths tutor sent Smiling 哥 dreaming and drooling. All those memories of years gone by when he had eavesdropped on neighbours' and strangers' maths tuition while conveniently stalking his 梦中情人 replayed in his head like some black-and-white movie. ... ... Sleeping memories of past mathematical endeavours awoken in his head. He took out his pen and notepad and starting writing away, talking as he wrote, trying to emulate his 梦中情人. "Let the selling price of each jar of pineapple tarts be $x. Since he made a profit of 20% on Jar 1, $x is therefore 120% of the cost price of Jar 1. You know why? Because the cost price is 100%, and the profit is 20%, so the selling price is 100% + 20% = 120%, understand? Cost price of Jar 1 = [pmath]${x/{120%}} * 100% = $({5x}/6)[/pmath]. Since he made a loss of 20% on Jar 2, $x is therefore 80% of the cost price of Jar 2. You know why? Because the cost price is 100%, and the loss is 20%, so the selling price is 100% - 20% = 80%, understand? Cost price of Jar 2 = [pmath]${x / {80%}} * 100% = $({5x}/4)[/pmath]. Adding up the cost price of both jars we get [pmath]$({5x}/6) + $({5x}/4) = $({25x}/12)[/pmath] Adding up the selling price of both jars we get $2x. Since [pmath]$({25x}/12)[/pmath] > $2x he made a net profit of [pmath]$(x/12)[/pmath]. <span class="highlight"><b>Miss Loi:</b> *points to the statement above with trembling fingers* 你活得不耐烦了是吗?</span> Understand? Now to find the percentage profit, you just have to use [profit / cost] times 100%. Like this, [pmath]{{${x/12}}/{$2x}} * 100% = (100/24)% = 4.17%[/pmath] (3s.f.). Get it? You have been cheated <i>lah</i>! Next year when you go CNY shopping, remember to call me along <i>hor</i>!" He laughed a confidently evil laugh as he handed the scribbled workings to the auntie, then sat down and admired his 梦中情人 at close range... The fierce glance from the angry maths tutor sent Smiling 哥 dreaming and drooling. All those memories of years gone by when he had eavesdropped on neighbours' and strangers' maths tuition while conveniently stalking his 梦中情人 replayed in his head like some black-and-white movie.

... ...

Sleeping memories of past mathematical endeavours awoken in his head.

He took out his pen and notepad and starting writing away, talking as he wrote, trying to emulate his 梦中情人.

"Let the selling price of each jar of pineapple tarts be $x.

Since he made a profit of 20% on Jar 1, $x is therefore 120% of the cost price of Jar 1. You know why? Because the cost price is 100%, and the profit is 20%, so the selling price is 100% + 20% = 120%, understand?

Cost price of Jar 1 = ${x/{120%}} * 100% = $({5x}/6).

Since he made a loss of 20% on Jar 2, $x is therefore 80% of the cost price of Jar 2. You know why? Because the cost price is 100%, and the loss is 20%, so the selling price is 100% - 20% = 80%, understand?

Cost price of Jar 2 = ${x / {80%}} * 100% = $({5x}/4).

Adding up the cost price of both jars we get $({5x}/6) + $({5x}/4) = $({25x}/12)
Adding up the selling price of both jars we get $2x.

Since $({25x}/12) > $2x he made a net profit of $(x/12).

Miss Loi: *points to the statement above with trembling fingers* 你活得不耐烦了是吗?

Understand?

Now to find the percentage profit, you just have to use [profit / cost] times 100%. Like this,

{{${x/12}}/{$2x}} * 100% = (100/24)% = 4.17% (3s.f.).

Get it?

You have been cheated lah! Next year when you go CNY shopping, remember to call me along hor!"

He laughed a confidently evil laugh as he handed the scribbled workings to the auntie, then sat down and admired his 梦中情人 at close range...

]]> By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-36931 Miss Loi Mon, 15 Feb 2010 06:32:10 +0000 http://www.exampaper.com.sg/questions/e-maths/the-foolish-things-people-do-for-a-sexy-maths-tutor#comment-36931 <span class="topsy_trackback_comment"><span class="topsy_twitter_username"><span class="topsy_trackback_content">The foolish things people do for a sexy maths tutor: http://bit.ly/coLjMQ</span></span> The foolish things people do for a sexy maths tutor: http://bit.ly/coLjMQ

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