Comments on: The Importance Of Making An Appointment Before Visiting The Temple http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple Sassy O Level Maths Tuition, Questions & Tips from Singapore's Favourite Private Tutor Sun, 05 Feb 2012 17:08:39 +0000 hourly 1 By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38138 Miss Loi Wed, 30 Jun 2010 16:13:52 +0000 http://www.exampaper.com.sg/?p=1436#comment-38138 'Aroused' by mathlover's working, memories of Smiling 哥's hated primary school maths lessons came flooding back, and he decided to 'repackage' the a,b,c,d in order to construct the algebraic equation/formula using just one variable <span class="fineprint">(coz he was one of those straight-minded students who refused to believe that a single equation can solve for 4 unknowns)</span> Let <del>Miss Loi's birthday</del> the special number be <var>x</var>. "five-digit number formed from adding a ‘3′ after it" ⇒ 10<var>x</var> + 3 (×10 to 'shift all digits one space to the left') "five-digit number formed from adding a ‘3′ before it" ⇒ 30000 + <var>x</var> ∴ (30000 + <var>x</var>) − (10<var>x</var> + 3) = 3843 Thus, he solved the above and got <var>x</var> = 2906. And with all the clues and promptings from here and over at the <a href="http://facebook.com/celineloi?v=wall" rel="nofollow">Maths Tutor's Facebook Wall</a>, a sudden realization came to him and he took a deep breath and shouted <span class="superbig">Happy Birthday! Loi Loi!</span> ^^ Q.E.D. ^^ 'Aroused' by mathlover's working, memories of Smiling 哥's hated primary school maths lessons came flooding back, and he decided to 'repackage' the a,b,c,d in order to construct the algebraic equation/formula using just one variable (coz he was one of those straight-minded students who refused to believe that a single equation can solve for 4 unknowns)

Let Miss Loi's birthday the special number be x.

"five-digit number formed from adding a ‘3′ after it"
⇒ 10x + 3 (×10 to 'shift all digits one space to the left')

"five-digit number formed from adding a ‘3′ before it"
⇒ 30000 + x

∴ (30000 + x) − (10x + 3) = 3843

Thus, he solved the above and got x = 2906.

And with all the clues and promptings from here and over at the Maths Tutor's Facebook Wall, a sudden realization came to him and he took a deep breath and shouted

Happy Birthday! Loi Loi!

^^ Q.E.D. ^^

]]> By: mathslover http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38136 mathslover Tue, 29 Jun 2010 15:59:05 +0000 http://www.exampaper.com.sg/?p=1436#comment-38136 Let the desired 4 digits be 'a' 'b' 'c' and 'd' in that order. Hence the number we want to find will be 1000a + 100b + 10c + d. 30000 + 1000a + 100b + 10c + d - (10000a + 1000b + 100c + 10d + 3) = 3843 9000a + 900b + 90c + 9d = 26154 1000a + 100b + 10c + d = 2906 Q.E.D. ^^ And why do I have a feeling you'll have something to say about students complaining this is 1 equation with 4 unknowns and hence 'unsolvable'? P.S. @ clarion-x : Having to admit I was wrong about Miss Loi's age being 77 is worse than death... Happy 38th birthday Miss Loi! See, I halved 77 and so kindly rounded it down. :D Let the desired 4 digits be 'a' 'b' 'c' and 'd' in that order. Hence the number we want to find will be 1000a + 100b + 10c + d.

30000 + 1000a + 100b + 10c + d - (10000a + 1000b + 100c + 10d + 3) = 3843
9000a + 900b + 90c + 9d = 26154
1000a + 100b + 10c + d = 2906

Q.E.D. ^^

And why do I have a feeling you'll have something to say about students complaining this is 1 equation with 4 unknowns and hence 'unsolvable'?

P.S. @ clarion-x : Having to admit I was wrong about Miss Loi's age being 77 is worse than death...

Happy 38th birthday Miss Loi! See, I halved 77 and so kindly rounded it down. :D

]]> By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38135 Miss Loi Tue, 29 Jun 2010 06:04:24 +0000 http://www.exampaper.com.sg/?p=1436#comment-38135 Disembodied voice (which most definitely sounds <77 yrs old) speaks again <blockquote> Actually this question is adapted from another question that required the formation and evaluation of an <span class="highlight">algebraic equation</span>. But it was difficult to fit the hallowed number of 2906 into the original question. So for the purpose of practice, as well as to atone for your 77-year-old heresy, can you obtain the answer through a suitable algebraic equation? </blockquote> Disembodied voice (which most definitely sounds <77 yrs old) speaks again

Actually this question is adapted from another question that required the formation and evaluation of an algebraic equation. But it was difficult to fit the hallowed number of 2906 into the original question.

So for the purpose of practice, as well as to atone for your 77-year-old heresy, can you obtain the answer through a suitable algebraic equation?

]]> By: clarion-x http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38134 clarion-x Tue, 29 Jun 2010 05:42:08 +0000 http://www.exampaper.com.sg/?p=1436#comment-38134 @mathslover you looking for death ah you -.- @mathslover
you looking for death ah you -.-

]]> By: mathslover http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38133 mathslover Tue, 29 Jun 2010 05:19:09 +0000 http://www.exampaper.com.sg/?p=1436#comment-38133 Happy 77th birthday Miss Loi! If you let the number be abcd, then use 3abcd - abcd3, and then use simple subtraction, you will get abcd = 2906. And considering you used the number 33 in this question, and you are certainly unlikely to be 33 years of age, the only logical explanation is that you were born in 1933. *runs* Happy 77th birthday Miss Loi!

If you let the number be abcd, then use 3abcd - abcd3, and then use simple subtraction, you will get abcd = 2906.

And considering you used the number 33 in this question, and you are certainly unlikely to be 33 years of age, the only logical explanation is that you were born in 1933.

*runs*

]]> By: clarion-x http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38132 clarion-x Tue, 29 Jun 2010 05:08:12 +0000 http://www.exampaper.com.sg/?p=1436#comment-38132 EEEEEEEEKS D: Miss Loi I'm having exams now... Next time can? EEEEEEEEKS D:
Miss Loi I'm having exams now... Next time can?

]]> By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38131 Miss Loi Tue, 29 Jun 2010 04:54:46 +0000 http://www.exampaper.com.sg/?p=1436#comment-38131 Disembodied voice speaks again <blockquote> Oh I haven't dealt with you yet for storming The Temple the last time! </blockquote> Disembodied voice speaks again

Oh I haven't dealt with you yet for storming The Temple the last time!

]]> By: clarion-x http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38129 clarion-x Tue, 29 Jun 2010 04:27:40 +0000 http://www.exampaper.com.sg/?p=1436#comment-38129 2906. *Yawns* 2906. *Yawns*

]]> By: Miss Loi http://www.exampaper.com.sg/questions/e-maths/the-importance-of-making-an-appointment-before-visiting-the-temple#comment-38127 Miss Loi Mon, 28 Jun 2010 18:52:43 +0000 http://www.exampaper.com.sg/?p=1436#comment-38127 <span class="topsy_trackback_comment"><span class="topsy_twitter_username"><span class="topsy_trackback_content">Time is running out, so please help him find and explain the significance of this very, very special number: http://bit.ly/9LUKZ6</span></span> Time is running out, so please help him find and explain the significance of this very, very special number: http://bit.ly/9LUKZ6

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