M7MBA wrote:Jennifer has 60 dollars more than Brian. If she were to give Brian 1/5 of her money, Brian would have 25% less than the amount that Jennifer would then have. How much money does Jennifer have?
A. 40
B. 100
C. 120
D. 140
E. 180
We can PLUG IN THE ANSWERS, which represent Jennifer's amount.
When the correct answer is plugged in, Brian's new amount will be 75% of Jennifer's new amount, with the result that his new amount will be 25% LESS than her new amount.
Since the problem involves PERCENTS, start with J=100.
B: J=100
Since Jennifer has 60 more dollars than Brian, B=40.
After Jennifer gives Brian 1/5 of her $100 -- in other words, after Jennifer gives Brian $20 -- we get:
New J = 100-20 = 80.
New B = 40+20 = 60.
(new B)/(new J) = 60/80 = 3/4 = 75%.
Success!
The correct answer is
B.
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