# GMAT

**Created:**2014-05-19

**Last Modified:**2014-05-19

^{2}+b

^{2}=c

^{2 }

- remember to take square root when looking for "c"

- all sides equal
- all angles equal 60°

__b x h__

^{2}

- whole: 360°
- 1/4: 90°
- 1/2: 180°
- 3/4: 270°

__N-O__

*first*, find the conclusion.

- can be negative
**or**positive - sometimes called "natural" or "whole" numbers
- do NOT include fractions
- do NOT include decimals
- DOES include
__ZERO.__

*only*integers can be consecutive.

__positive__integer that is only divisible by

*two*numbers:

**1 & itself.**

**2, 3, 5, 7, 11, 13**

**0 nor 1 is prime**

**28:**28--divisible by 4.

**2**AND

**3**

**denominator.**

- zero in the
*numerator*is fine.

*always*positive.

- just because the answer to the question is NO doesn't mean it is
*insufficient*.

- yes or no-- sufficient
- maybe-- insufficient

- fractions must have same denominator.
- multiply the denominators together for a new common one.
- then multiply the numerators by the same number you did the demonimator,

- multiply the whole number by the denominator and add the numerator.
- that becomes the new numerator and use the same denominator.

**3½**= 3 x 2 = 6 + 1 = 7 =

**7/2**

**1/5**.6=

**3/5**

**1/4**.66=

**2/3**

**1/3**.75=

**3/4**

**2/5**.8=

**4/5**

**1/2**

- to find the whole part, set up a proportion.
- look at ratio box on page 111

- a little bit more than simple
- quarterly= rate is divided into 4 equal parts.
- semiannually= two equal parts

__sum of items__

- plug in numbers to formula
- then divide total sum of remaining numbers by total number of remaining numbers

- can be more than one mode

^{2}

^{3}

^{1}:

^{0:}

- avoid using 0 or to plug in
- or numbers in the problem or answer choices
- for problems using percents, use 100
- hours or minutes use 30 or 120

- plug in a number for total (fractions: multiply denominators)
- write down the totals of each part
- the number you're looking for should reduce into an answer choice

^{2}+5x+2x+10

^{2}+7x+10

- (x+y)
^{2}= x^{2}+2xy+y^{2} - (x+y)(x-y)= x
^{2}-y^{2 } - (x-y)
^{2}= x^{2}-2xy+y^{2}

- don't reduce functions

__y__

_{1}-y_{2}_{1}-x

_{2}

*Multi-source reasoning question*

**37 questions total**

- 19 problem-solving, 18 data sufficiency

**75 minutes to complete**

**41 questions total**

- 13 reading comprehension
- 17 sentence correction
- 11 critical reasoning

**75 minutes to complete**

**12 questions total**

- table analysis
- graphics interpretation
- multi-source reasoning
- two-part analysis

**30 minutes to complete**

- questions left unanswered will lower your score.

- negative slope

- positive slope

__Total__=Group 1+Group 2-both+neither

2. don't spend too much time on one question-- sometimes its best to guess & move on.

Then go straight to the statements

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