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05 Mar 2025, 01:30
Kudos
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C
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Difficulty:
35%
(medium)
Question Stats:
72% (01:32) correct
28%
(01:23)
wrong
based on 96
sessions
History
Date
Time
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Not Attempted Yet
A caterer normally charges $15 per person plus a $10 delivery fee for 'in-advance' orders but charges $20 per person plus a rush delivery fee for same-day orders. If Amy places a same-day order for her company, by what percent is her total cost greater than if she had placed the same order 'in advance'?
(1) The rush delivery fee is $20.
(2) Amy places an order for 10 people.
(1) The rush delivery fee is $20.
(2) Amy places an order for 10 people.
05 Mar 2025, 01:41
Kudos
Bookmarks
Let number of people be P
Let rush delivery fee be R
In-advance Charges
15P+10
Same Day delivery Charges
20P+R
We are asked 100*(20P+R-15P-10)/(15P+10) = 100*(5P+R-10)/(15P+10)
We need values of P and R both
Statement 1
R = 20
We don't know value of P
Insufficient
Statement 2
P = 10
We don't know the value of R
Insufficient
Combined we have values for P and R, which can help us calculate percent her total cost greater than if she had placed the same order 'in advance'. Both, combined are sufficient
Let rush delivery fee be R
In-advance Charges
15P+10
Same Day delivery Charges
20P+R
We are asked 100*(20P+R-15P-10)/(15P+10) = 100*(5P+R-10)/(15P+10)
We need values of P and R both
Statement 1
R = 20
We don't know value of P
Insufficient
Statement 2
P = 10
We don't know the value of R
Insufficient
Combined we have values for P and R, which can help us calculate percent her total cost greater than if she had placed the same order 'in advance'. Both, combined are sufficient
Bunuel
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