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Re: Calling plan
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crackgmat007
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. i have to remove the old one.. 
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hk
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The wordings actually confuse me but here is what i get from it:crackgmat007 wrote:Pls explain.
Monthly charge= $25
Regular Call charge for 1 hr = 1.6 + (0.8*57) [1.6 for first 3 mins and 0.8 for the remaining 57 mins] = $47.2
Now the total charge = 25 + 47.2 = 72.2
Now applying the discount, the discounted call charge for 1 hour =
0.4 (1.6) + 0.4 (0.8) (57) = 0.64 + 0.32 (57) = 18.88
Total charge on applying the discount = 25+18.88 = 43.88
Hence the total savings using the discount = 72.2 - 43.88 = $28.32 (Which is none of the option so i'd just go with the closest option E)
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crackgmat007
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Ian Stewart
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You'll save the most if you're charged the most - that is, if all of your phone calls are short. If each call lasts one minute, then each call will cost $1.60, and the calls will cost $96 in total. When that's reduced by 40%, the savings are 0.4*96 = $38.40. Of course, you pay $25 for this deal, leaving you with a net savings of $38.40 - $25 = $13.40.
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