From May 1 to May 30 in the same year, the balance in a

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From May 1 to May 30 in the same year, the balance in a [#permalink]

03 Aug 2007, 07:09

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From May 1 to May 30 in the same year, the balance in a checking account increased. What was the balance in the checking account on May 30?

(1) If, during this period of time, the increase in the balance in the checking
account had been 12 percent, then the balance in the account on May 30 would have been $504

(2) During this period of time, the increase in the balance in the checking account was 8 percent.

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03 Aug 2007, 07:21

C for me

1.

x * 1.12 = 504
x = 504/1.12
x = 450

Don't know by what % the original increased - Insuf.

2.

x * 1.08 = y

Don't know the initial value - Insuf.

1+2.

450 * 1.08 = 486

Sufficient

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03 Aug 2007, 09:52

St1:
Insufficient. Only gives us the original amount at May 1.

St2:
Insufficient. Only gives us the percentage increase in the balance at May 30.

Using St1 and St2:
Sufficient. With the percentage increase and the original balance, we can work out the balance on May 30.

Ans C

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03 Aug 2007, 21:44

Thanks guys. I got C too. But the reference answer was A. :shock:

[#permalink] 03 Aug 2007, 21:44

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From May 1 to May 30 in the same year, the balance in a

From May 1 to May 30 in the same year, the balance in a

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