## Search found 2039 matches

#### A fair 2-sided coin is flipped 6 times. What is the probability that tails will be the result at least twice, but not

###### Problem Solving

##### Re: A fair 2-sided coin is flipped 6 times. What is the probability that tails will be the result at least twice, but no

A fair 2-sided coin is flipped 6 times. What is the probability that tails will be the result at least twice, but not more than 5 times? A. 5/8 B. 3/4 C. 7/8 D. 57/64 E. 15/16 OA C Source: Princeton Review Let's find it out the other way: P of all head(or no tail)\(=\dfrac{1}{2^6}=\dfrac{1}{64}\) P...

- by swerve

Tue Aug 24, 2021 5:41 am- Forum: Problem Solving
- Topic: A fair 2-sided coin is flipped 6 times. What is the probability that tails will be the result at least twice, but not
- Replies:
**1** - Views:
**107**

#### A mother and father have seven children, and the family receives an invitation with four tickets to the circus. If the

###### Problem Solving

##### Re: A mother and father have seven children, and the family receives an invitation with four tickets to the circus. If t

A mother and father have seven children, and the family receives an invitation with four tickets to the circus. If the family decides to randomly select the four members who get to attend the circus, but determine that the chosen group must include at least one of the mother and father, how many di...

- by swerve

Tue Aug 24, 2021 5:30 am- Forum: Problem Solving
- Topic: A mother and father have seven children, and the family receives an invitation with four tickets to the circus. If the
- Replies:
**1** - Views:
**91**

##### Functions And Custom Characters

If \(f(n)=xa^n,\) what is the value of \(f(5)?\)

1) \(f(0)=3\)

2) \(f(4)=48\)

The OA is E

**Source: Princeton Review**

- by swerve

Fri Aug 20, 2021 5:27 am- Forum: Data Sufficiency
- Topic: Functions And Custom Characters
- Replies:
**0** - Views:
**74**

##### Statistics And Sets Problems

For the positive integers \(x, x + 2, x + 4, x + 7,\) and \(x + 12,\) the mean is how much greater than the median?

A. 0

B. 1

C. 2

D. 4

E. 7

The OA is B

**Source: Veritas Prep**

- by swerve

Fri Aug 20, 2021 5:15 am- Forum: Problem Solving
- Topic: Statistics And Sets Problems
- Replies:
**0** - Views:
**66**

##### Re: How many multiples of 3 are there between 10 and 90, inclusive?

How many multiples of 3 are there between 10 and 90, inclusive? A. 26 B. 27 C. 28 D. 29 E. 30 OA B Source: Princeton Review First multiple of \(3\) in the range: \(3 * 4 = 12\) Last Multiple of \(3\) in the range: \(3 * 30 = 90\) Total no. of multiples in the range: \(30 -4 + 1 = 27\) Therefore, B

- by swerve

Wed Aug 18, 2021 1:27 pm- Forum: Problem Solving
- Topic: How many multiples of 3 are there between 10 and 90, inclusive?
- Replies:
**1** - Views:
**109**

#### If the circle above has center \(A\) and area \(144\pi,\) what is the perimeter of sector \(ABCD?\)

###### Problem Solving

##### Re: If the circle above has center \(A\) and area \(144\pi,\) what is the perimeter of sector \(ABCD?\)

CircleA.png If the circle above has center \(A\) and area \(144\pi,\) what is the perimeter of sector \(ABCD?\) A. \(12+\dfrac3{2\pi}\) B. \(12+3\pi\) C. \(18+\dfrac3{2\pi}\) D. \(24+\dfrac3{2\pi}\) E. \(24+3\pi\) Answer: E Source: Veritas Prep Radius of the circle \(= 12\) Circumference of the cir...

- by swerve

Wed Aug 18, 2021 1:24 pm- Forum: Problem Solving
- Topic: If the circle above has center \(A\) and area \(144\pi,\) what is the perimeter of sector \(ABCD?\)
- Replies:
**1** - Views:
**84**

#### A group of 4 boys and 5 girls take a test. What is the average (arithmetic mean) score of the group in the test?

###### Data Sufficiency

##### Re: A group of 4 boys and 5 girls take a test. What is the average (arithmetic mean) score of the group in the test?

A group of 4 boys and 5 girls take a test. What is the average (arithmetic mean) score of the group in the test? 1. The average score of the boys is 23 points while the average score of the girls is 20 points 2. If one of the girls had scored 6 points more, the average score of the group would have...

- by swerve

Tue Aug 17, 2021 4:23 am- Forum: Data Sufficiency
- Topic: A group of 4 boys and 5 girls take a test. What is the average (arithmetic mean) score of the group in the test?
- Replies:
**1** - Views:
**94**

#### A six-sided die with faces numbered one through six is rolled twice. What is the probability that the face with the

###### Problem Solving

##### Re: A six-sided die with faces numbered one through six is rolled twice. What is the probability that the face with the

A six-sided die with faces numbered one through six is rolled twice. What is the probability that the face with the number 2 on it will not be facing upward on either roll? A. 1/6 B. 2/3 C. 25/36 D. 17/18 E. 35/36 OA C Source: Princeton Review Probability of not getting a \(2\) on the first roll \(...

- by swerve

Tue Aug 17, 2021 4:09 am- Forum: Problem Solving
- Topic: A six-sided die with faces numbered one through six is rolled twice. What is the probability that the face with the
- Replies:
**1** - Views:
**116**

#### If x represents the sum of the interior angles of a regular hexagon and y represents the sum of the interior angles of

###### Problem Solving

##### Re: If x represents the sum of the interior angles of a regular hexagon and y represents the sum of the interior angles

If x represents the sum of the interior angles of a regular hexagon and y represents the sum of the interior angles of a regular pentagon, then the difference between x and y is equal to the sum of the interior angles of what geometric shape? A. Triangle B. Square C. Rhombus D. Trapezoid E. Pentago...

- by swerve

Tue Aug 17, 2021 4:04 am- Forum: Problem Solving
- Topic: If x represents the sum of the interior angles of a regular hexagon and y represents the sum of the interior angles of
- Replies:
**1** - Views:
**94**

##### Algebra

If \(x^2+2xwy+3wy^2=144,\) and if \(x\) and \(y\) and \(z\) are all positive, then what is the value \((x+3y)?\)

1) \(x+2y=11\)

2) \(w=3\)

The AO is B

**Source: Magoosh**

- by swerve

Fri Aug 13, 2021 12:08 pm- Forum: Data Sufficiency
- Topic: Algebra
- Replies:
**0** - Views:
**76**

##### Word Problems

Susan ordered x pizzas for $11 each. In additional, each pizza topping cost $4for the first pizza and $3 for each additional pizza. If each pizza has exactly one topping, which of the following gives the total cost, in terms of x, of the pizzas Susan ordered? A. \(11x + 1\) B. \(11x + 4\) C. \(14x +...

- by swerve

Fri Aug 13, 2021 12:02 pm- Forum: Problem Solving
- Topic: Word Problems
- Replies:
**0** - Views:
**82**

#### Seed mixture \(X\) is \(40\) percent ryegrass and \(60\) percent bluegrass by weight; seed mixture \(Y\) is \(25\) perce

###### Problem Solving

##### Re: Seed mixture \(X\) is \(40\) percent ryegrass and \(60\) percent bluegrass by weight; seed mixture \(Y\) is \(25\) p

Seed mixture \(X\) is \(40\) percent ryegrass and \(60\) percent bluegrass by weight; seed mixture \(Y\) is \(25\) percent ryegrass and \(75\%\) fescue. If a mixture of \(X\) and \(Y\) contains \(30\%\) ryegrass, what percent of the weight of the mixture is \(X?\) A. \(10\%\) B. \(33\frac13\%\) C. ...

- by swerve

Thu Aug 12, 2021 5:52 am- Forum: Problem Solving
- Topic: Seed mixture \(X\) is \(40\) percent ryegrass and \(60\) percent bluegrass by weight; seed mixture \(Y\) is \(25\) perce
- Replies:
**2** - Views:
**184**

#### Harry started a 6-mile hike with a full 10-cup canteen of water and sinished the hike in 2 hours with 1 cup of water

###### Problem Solving

##### Re: Harry started a 6-mile hike with a full 10-cup canteen of water and sinished the hike in 2 hours with 1 cup of water

GMAT Prep Harry started a 6-mile hike with a full 10-cup canteen of water and finished the hike in 2 hours with 1 cup of water remaining in the canteen. If the canteen leaked at the rate of 1 cup per hour and Harry drank 3 cups of water during the last mile, how many cups did he drink per mile duri...

- by swerve

Thu Aug 12, 2021 5:40 am- Forum: Problem Solving
- Topic: Harry started a 6-mile hike with a full 10-cup canteen of water and sinished the hike in 2 hours with 1 cup of water
- Replies:
**1** - Views:
**105**

#### The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sall

###### Problem Solving

##### Re: The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week.

The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sally paid $26.40 for gasoline last week at the station. How much more will Sally pay this week at the station for the same amount of gasoline? A. $1.70 B. $2.55 C. $2.64 D. $2.72 E. ...

- by swerve

Tue Aug 10, 2021 11:54 am- Forum: Problem Solving
- Topic: The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sall
- Replies:
**2** - Views:
**152**

#### A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and ban

###### Problem Solving

##### Re: A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and

A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase? (A) 10 (B) 11 (C) 12 (D) 13 (E) 14 Answer: B Source: Official Guide We...

- by swerve

Tue Aug 10, 2021 11:41 am- Forum: Problem Solving
- Topic: A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and ban
- Replies:
**2** - Views:
**150**