You are not logged in.
Pages: 1
Question i:
The other day I was in a department store, when i saw a shirt i liked that was on sale. It was marked "20% off". I decided to buy two. The person behind the till did some mental calculations. he said, "20 % off each shirt, that will be 40% off the total price."
(i) Explain clearly and fully what u would say to the shop assistant to convince him that an error has been made.
(ii)Also explain how the error should be put right.
I HAVE 5 DAYS UNTIL ITS DUE PLEASE HELLP!
Percent is "per hundred", so it is still 20% off the total price.
For help in explaining, read Math Percentages
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
Offline
wait i dont get it if there are two shirts wouldnt it make it 40 percent off
as their are two 20 percent offs?
(i) Explain clearly and fully what u would say to the shop assistant to convince him that an error has been made.
(ii)Also explain how the error should be put right.
I would probably say nothing to the shop assistant, but just pay the marked price less 40% and leave the shop quickly before the shop assistant discovers his error!
Let me explain why.
Okay, suppose each shirt costs 10 euros. A 20% reduction is a reduction of 20 ∕ 100 × 10 = 2 euros, so each shirt now costs 10 − 2 = 8 euros. I buy two shirts, which should cost me 16 euros. Now, if there were no reduction, I would have to pay 20 euros instead. The percentage difference is therefore (20 − 16) ∕ 20 × 100% = 20%, same as for just one shirt.
In fact, no matter how many shirts I buy, the percentage difference will always be 20%.
But, if the shop assistant wants to knock off 40% for two shirts, this would be a reduction of 40 ∕ 100 × 20 = 8 euros which means I am only charged 20 − 8 = 12 euros! This would be less than I should have paid! So why should I complain
Last edited by JaneFairfax (2007-03-19 20:02:42)
Offline
With that shopkeeper we could buy 5 shirts for 100% off, and no cost! (What would happen if we bought 6 shirts?)
The boss would sure be upset.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
Offline
yeh i guess lol!
Pages: 1