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 P6 Maths ! 2012 SA1 Nan Hua Paper 2 Q4
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By: geniuskids (offline)  Monday, April 29 2013 @ 11:28 AM CDT (Read 1408 times)  
geniuskids

Going crazy.....

(Q4) The usual price of a cinema ticket is $9. When the price was reduced during the Great Singapore Sale, the number of tickets sold increased by 50 %, while the amount of money collected from the sale of tickets increased by 25%. Find the price of a cinema ticket during the Great Singapore Sale.

Answer from anser sheet is $750

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By: echeewh (offline)  Monday, April 29 2013 @ 06:59 PM CDT  
echeewh

Hi Geniuskids,

It s more of a misprint / typo than anything else. Answer should be $7.50 instead.

Heres how it works:

<Before>
100% tickets sold
Price of ticket: $9

<GSS>
150% tickets sold
Price of ticket: 1u

Increase in sales of 25%:
[(150u - 900) / 900] × 100 = 25
150u - 900 = (25 / 100) × 900 = 225
150u = 225 + 900 = 1125
1u = 1125 ÷ 150 = $7.50

=======

Trust this helps.

Do let me know again if there's further clarification.

Cheers,
Edward

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By: geniuskids (offline)  Tuesday, April 30 2013 @ 09:27 AM CDT  
geniuskids

thanks, must be a mis-print!

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