# Study sets matching "quant gmat"

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What does it mean for x to be divisible…

What are the first 10 prime numbers?

Units digit

What does it mean for x to be a multipl…

x is divisible by y, if y (the divisor) can go into x evenly,…

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

The number immediately to the left of the decimal point.... Ex: 3…

If x is a multiple of y, then x can be created by multiplying…

What does it mean for x to be divisible…

x is divisible by y, if y (the divisor) can go into x evenly,…

What are the first 10 prime numbers?

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Pythagorean Triples

Numbers Squared

Dividing Fractions

Prime Numbers

(3,4,5) (5,12,13) (7,24,25) (8,15,17)

(1, 1)(2, 4) (3, 9) (4, 16) (5, 25) (6, 36) ( 7, 49) (8, 64) (…

Flip second fraction and Multiply

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Pythagorean Triples

(3,4,5) (5,12,13) (7,24,25) (8,15,17)

Numbers Squared

(1, 1)(2, 4) (3, 9) (4, 16) (5, 25) (6, 36) ( 7, 49) (8, 64) (…

Parallelogram

Rectangle

Rhombus

Trapezoid

Opposite Sides and Opposite Angles are equal

All angles are 90 degrees, and opposite sides are equal

All sides are equal. Opposite angles are equal

One pair of opposite sides is parallel. In this case top and b…

Parallelogram

Opposite Sides and Opposite Angles are equal

Rectangle

All angles are 90 degrees, and opposite sides are equal

The formula for 2 set overlapping sets…

The formula for 3 set overlapping sets…

Exponent Rules: 4^X (X = -1) What is th…

Exponent Rules: 4^X (X = 1/2) What is t…

Total = Group 1 + Group 2 - (people in both) + (people in neit…

Total = Group 1 + Group 2 + Group 3 - (people in 2 groups) - 2…

1/4

2

The formula for 2 set overlapping sets…

Total = Group 1 + Group 2 - (people in both) + (people in neit…

The formula for 3 set overlapping sets…

Total = Group 1 + Group 2 + Group 3 - (people in 2 groups) - 2…

Formula for sum of infinite geometric p…

Circle - formulas, length of an arc tri…

Triangle inscribed in a circle

Triangle - types, area, properties

b / (1-r)... b is first term... (Ex: 1/2, -1/4, 1/8, -1/16, ... =>…

Radius = r... Diameter = 2r... Area = πr²... Circumference (aka perimet…

If a triangle is inscribed in a circle so that one of its side…

Angles add up to 180˚... Sum of any 2 sides is always greater tha…

Formula for sum of infinite geometric p…

b / (1-r)... b is first term... (Ex: 1/2, -1/4, 1/8, -1/16, ... =>…

Circle - formulas, length of an arc tri…

Radius = r... Diameter = 2r... Area = πr²... Circumference (aka perimet…

Formula for sum of infinite geometric p…

Base 5 fractional and decimal equivalen…

Base 6 fractions and decimal equivalent

Base 7 fractions and decimal equivalent

b / (1-r)... b is first term... (Ex: 1/2, -1/4, 1/8, -1/16, ... =>…

1/5=0.2=20%... 2/5=.40=40%... 3/5=.60=60%... 4/5=.80=80%

1/6=.167=16.7%... 2/6=.33=33.3%... 4/6=.67=67%... 5/6=.83=83%

1/7=.143=14.3%

Formula for sum of infinite geometric p…

b / (1-r)... b is first term... (Ex: 1/2, -1/4, 1/8, -1/16, ... =>…

Base 5 fractional and decimal equivalen…

1/5=0.2=20%... 2/5=.40=40%... 3/5=.60=60%... 4/5=.80=80%

STANDARD DEVIATION

SD - SPREAD OUT

SD - CLUSTERED

STANDARD DEVIATION FORMULA

measures the dispersion of a group of values compared to the m…

greater standard deviation

smaller standard deviation

contains the squares of the differences between each individua…

STANDARD DEVIATION

measures the dispersion of a group of values compared to the m…

SD - SPREAD OUT

greater standard deviation

Perpendicular slope

Pythagorean Theorem

First group of data sufficiency answers

Second group of data sufficiency answers

negative reciprocal of original slope

a^2 + b^2 = c^2

A (State 1 ALONE), D (EACH statement ALONE)

B (Statement 2 ALONE), C (Both statements together), E (neithe…

Perpendicular slope

negative reciprocal of original slope

Pythagorean Theorem

a^2 + b^2 = c^2

TRUE

Integers

Quotient

Remainder

True or false: in ratio questions, if you change the actual qu…

All whole numbers (both positive and negative) and zero.

The result when one number is divided by another.

What is left over after dividing.

TRUE

True or false: in ratio questions, if you change the actual qu…

Integers

All whole numbers (both positive and negative) and zero.

Distance or Work Rate

Rate... a... b... Shrinking Distance is a + b

Rate... a... b... Shrinking Distance is a - b

Rate... a... b... Shrinking Distance is b - a

Rate X Time

Relative Rates: ... Car A and Car B are driving TOWARDS each other

Relative Rates: ... Car A is chasing Car B and catching up

Relative Rates: ... Car A is chasing Car B and falling behind

Distance or Work Rate

Rate X Time

Rate... a... b... Shrinking Distance is a + b

Relative Rates: ... Car A and Car B are driving TOWARDS each other

(x-y)/(y-x) = -1

60/x+2 +1 = 60/x

she purchased no fractions of pounds

x^ 4 = 36 x^2

reciprocal

LCM = multiply both sides by x(x+2)

isolate variables into single digits and then one of them has…

have to subtract 36X^2 and set equal to zero and factor out x.…

(x-y)/(y-x) = -1

reciprocal

60/x+2 +1 = 60/x

LCM = multiply both sides by x(x+2)

What is 70 percent of 120?

Precent Increase and Decrease - 2 formu…

Interest Formula

When do you know the repeating digits?

x = 70/100 * 120

Precent Change (x/100) = Change in Value / Original Value... New…

Total Amount = p

**(1+r/n)^n**t... Total amount = principal * (1+ra…if the dominator is 99,999,9999... then the numerator tells yo…

What is 70 percent of 120?

x = 70/100 * 120

Precent Increase and Decrease - 2 formu…

Precent Change (x/100) = Change in Value / Original Value... New…

What is the area of an equilateral tria…

What is the volume of a prism with a tr…

What is the surface area of a cube?

What is the volume of a cube?

Area of an equilateral triangle=s^2√3/4

=(base area)(length of the side)

Surface area=6*s^2

Volume of a cube equals s^3

What is the area of an equilateral tria…

Area of an equilateral triangle=s^2√3/4

What is the volume of a prism with a tr…

=(base area)(length of the side)

multiples of 9

data sufficiency answers and groupings

Elimination grid

Same numerator, which is bigger?

-9, 0, 9, 18, 27

A = 1... B = 2... C = together... D = either... E = not enough... AD or BCE

Starting w stmt 1:... Sufficient = AD... Insufficient = BCE... Startin…

Bigger denominator = smaller fraction

multiples of 9

-9, 0, 9, 18, 27

data sufficiency answers and groupings

A = 1... B = 2... C = together... D = either... E = not enough... AD or BCE

Maximizing Area

Oyinda wants to maximize the area of th…

Melissa's kitchen is a rectangle with p…

Minimum perimeter

When two rectangles have the same perimiter, the square always…

1)X is a rectangle (but not a square)... 2) Y is a square

Assume floor is a square... Maximize area!... P=72... Each side is 18…

Given a rectangle with a fixed area the rectangle with the min…

Maximizing Area

When two rectangles have the same perimiter, the square always…

Oyinda wants to maximize the area of th…

1)X is a rectangle (but not a square)... 2) Y is a square