DS-Gprep
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from 1) 20(2p) - 20(c) = 2400 insufficient
from 2) 20(p+2) - 20(c)= 440 insuffecient
Combo:
solve for p and substitute in one of the equations to get C .
IMO C
from 2) 20(p+2) - 20(c)= 440 insuffecient
Combo:
solve for p and substitute in one of the equations to get C .
IMO C
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Really, we can ignore the "20".xcusemeplz2009 wrote:pls show your solution/reasoning to support your ans...
Profit = sale price - cost
Profit = revenue - cost
P = R - C
The question wants us to figure out R - C
Statement One:
20*(2R) - 20C = 2400
2R - C = 120
Can't determine R - C
Insufficient.
Statement Two:
20(R + 2) - 20C = 440
20R + 40 - 20C = 440
20R - 20C = 400
R - C = 20
The second statement is independently sufficient.
Choose B.
Last edited by Testluv on Fri Nov 13, 2009 10:50 am, edited 3 times in total.
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