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# PS- Annual Income

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Manager
Joined: 05 Jul 2006
Posts: 198
Followers: 1

Kudos [?]: 24 [0], given: 0

PS- Annual Income [#permalink]  28 Aug 2006, 12:56
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(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
....

Last edited by lan583 on 11 Feb 2007, 07:55, edited 1 time in total.
Senior Manager
Joined: 14 Jul 2005
Posts: 402
Followers: 1

Kudos [?]: 12 [0], given: 0

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
Manager
Joined: 09 Aug 2005
Posts: 72
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Kudos [?]: 2 [0], given: 0

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)

MG
Current Student
Joined: 29 Jan 2005
Posts: 5240
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Kudos [?]: 191 [0], given: 0

gmatornot wrote:

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?
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# PS- Annual Income

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