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PS- Annual Income

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PS- Annual Income [#permalink] New post 28 Aug 2006, 12:56
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
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Last edited by lan583 on 11 Feb 2007, 07:55, edited 1 time in total.
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 [#permalink] New post 28 Aug 2006, 13:21
Answer is A 1/9

Area of smaller triangle = 1/2 * 4 * 4 = 8
Area of larger triangle = 1/2 * 12 * 12 = 72

Hence ratio is 1:9 or 1/9
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Answers [#permalink] New post 28 Aug 2006, 13:25
Q1. (a) 1/9

The ratio of the two triangle's areas is

1/2 * 4 * 4 divided by 1/2 * 12 * 12

= 1/3 * 1/3 = 1/9.

-------------------------------------------------

Q2. (c) 50 + I/40

The income tax formula can be calculated as follows:

0.02 I + (100+0.01I)/2

This Simplies to 100/2 + 0.05I/2

= 50 + I/40 (multiplying num and den by 100)

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 [#permalink] New post 31 Aug 2006, 21:59
gmatornot wrote:
Answer is A 1/9

Area of smaller triangle = 1/2 * 4 * 4 = 8
Area of larger triangle = 1/2 * 12 * 12 = 72

Hence ratio is 1:9 or 1/9


Same: 1/9

What if it were a three dimentional prism?? what would be the ratio of the volume of the smaller prism to that of the larger? Not 1/9, right?
  [#permalink] 31 Aug 2006, 21:59
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