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Problem

by Captchar » Fri Dec 21, 2012 9:36 am
Hi! I got stuck at this problem suddenly. Can you please discuss it?

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) $140
(B) $160
(C) $220
(D) $240
(E) $260
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by Anurag@Gurome » Fri Dec 21, 2012 9:39 am
Captchar wrote: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?
1 year = 12 months = 52 weeks

If the person pay by week, then in one year he pays 52*10 = $520
If the person pay by month, then in one year he pays 12*30 = $360

Hence, saving = $(520 - 360) = $160

The correct answer is B.
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