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went on a diet 6 months ago

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by sanju09 » Thu Jan 14, 2010 1:01 am
Joe went on a diet 6 months ago when he weighed 222 pounds. If he now weighs 198 pounds and continues to lose at the same average monthly rate, in approximately how many months will he weigh 180 pounds?
(A) 3
(B) 3 ½
(C) 4
(D) 4 ½
(E) 5
The mind is everything. What you think you become. -Lord Buddha



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Source: — Problem Solving |

by truplayer256 » Thu Jan 14, 2010 4:18 am
John loses x pounds every month.

222-6x=198

-6x=-24

x=4

198-4y=180

y=18/4 or 9/2 months

D
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