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# gmat prep

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Senior Manager
Joined: 12 Mar 2009
Posts: 307

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02 Jun 2009, 12:48
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Intern
Joined: 02 Jun 2009
Posts: 6

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02 Jun 2009, 15:59

a.) if the amt was credited at 21st day: ave at the end of 30 days : (600x21 + 300X9 )/30....so you can find The ave balance.....

CHOICE : A or D

b.) same logic: 540X25 + 300X5 /30...can find the average balance at the end of 30 days

B is sufficient..

Hence A & B are both sufficient...on their own>>> D

any other inputs??
Manager
Joined: 08 Feb 2009
Posts: 141
Schools: Anderson

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02 Jun 2009, 18:13
brick2009 wrote:

a.) if the amt was credited at 21st day: ave at the end of 30 days : (600x21 + 300X9 )/30....so you can find The ave balance.....

CHOICE : A or D

b.) same logic: 540X25 + 300X5 /30...can find the average balance at the end of 30 days

B is sufficient..

Hence A & B are both sufficient...on their own>>> D

any other inputs??

Re: gmat prep   [#permalink] 02 Jun 2009, 18:13
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