carcass wrote:
Judy bought a quantity of pens in packages of 5 for $0.80 per package. She sold all of the pens in packages of 3 for $0.60 per package. If Judy's profit from the pens was $8.00, how many pens did she buy and sell?
A. 40
B. 80
C. 100
D. 200
E. 400
CP of a pen =\(\frac{80}{5} = 16\)
SP of a pen =\(\frac{60}{3} = 20\)
Profit =\(20-16 = 4\) , per pen.
Total profit =\(800\) , so number of pens =\(\frac{800}{4} = 200\) . Ans - D.
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