renting by the month

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renting by the month

by sanju09 » Tue Jan 12, 2010 3:21 am
A parking garage rents parking spaces for $10 per week or $30 per month. How much does a person save in a year by renting by the month rather than by the week?
(A) $120
(B) $140
(C) $160
(D) $220
(E) $240
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by blaster » Tue Jan 12, 2010 3:57 am
30*12=360
52*10=520
--------------
520-360=160