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Jack and Jill each bought the same TV set using a 10% off co
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26 Apr 2017, 02:26
26 Apr 2017, 02:26
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Question Stats:
64% (01:14) correct
35% (01:17) wrong based on 248 sessions
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Jack and Jill each bought the same TV set using a 10% off coupon. Jack's cashier took 10% off the price and then added 8.5% sales tax. Jill's cashier first added the tax and then took 10% off the total price.
Quantity A |
Quantity B |
The amount Jack paid |
The amount The amount Jill paid |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
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Re: Jack and Jill each bought the same TV set using a 10% off co
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18 May 2017, 13:13
18 May 2017, 13:13
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Carcass wrote:
Jack and Jill each bought the same TV set using a 10% off coupon. Jack's cashier took 10% off the price and then added 8.5% sales tax. Jill's cashier first added the tax and then took 10% off the total price.
Quantity A |
Quantity B |
The amount Jack paid |
The amount The amount Jill paid |
Let's say the TV costs x dollars BEFORE the discount.
Jack's cashier took 10% off the price and then added 8.5% sales tax
Jack's cashier took 10% off the price... so, the discounted price = (0.9)x
....and then added 8.5% sales tax. Adding 8.5% tax is the same as multiplying by 1.085
So., Jack's final cost = (0.9)(x)(1.085)
Jill's cashier first added the tax and then took 10% off the total price.
Jill's cashier first added the tax... adding 8.5% tax is the same as multiplying by 1.085
So, the new cost is (1.085)(x)
....and then took 10% off the total price.
So, Jill's final cost = (0.9)(1.085)(x)
We get:
Quantity A: (0.9)(x)(1.085)
Quantity B: (0.9)(1.085)(x)
Answer:
Show: ::
C
Re: Jack and Jill each bought the same TV set using a 10% off co
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26 Jan 2019, 13:15
26 Jan 2019, 13:15
Very Tricky, at first glance i forgot the tax was in %
