## Search found 15564 matches

#### If Ann saves $$x$$ dollars each week and Beth saves $$y$$ dollars each week, what is the total amount that they save per

##### Re: If Ann saves $$x$$ dollars each week and Beth saves $$y$$ dollars each week, what is the total amount that they save

If Ann saves $$x$$ dollars each week and Beth saves $$y$$ dollars each week, what is the total amount that they save per week? (1) Beth saves $$\5$$ more per week than Ann saves per week. (2) It takes Ann $$6$$ weeks to save the same amount that Beth saves in $$5$$ weeks. Answer: C Source: Officia...

#### HELP PLEASE - Distributive property with !

##### Re: HELP PLEASE - Distributive property with !

Alyssa345 wrote:
Fri Jun 18, 2021 1:53 pm
How does the GMAT book come up with

k(k-1)! = k!

I always come up with (kk!)-k as a result.
I really don't understand how they use distributive property in this one.
Here's an example:
6(6 - 1)! = 6(5!)
= (6)(5)(4)(3)(2)(1)
= 6!

by [email protected]

Mon Jun 21, 2021 11:57 am
Forum: Problem Solving
Topic: HELP PLEASE - Distributive property with !
Replies: 2
Views: 16

#### What is the range of the prime factors of x, where x is 275?

##### Re: What is the range of the prime factors of x, where x is 275?

AAPL wrote:
Mon Jun 21, 2021 8:25 am
Magoosh

What is the range of the prime factors of x, where x is 275?

A. 5
B. 6
C. 11
D. 30
E. 55

OA B
Let's first find the prime factorization of 275...

275 = (5)(5)(11)

Range = 11 - 5 = 6

Cheers,
Brent

by [email protected]

Mon Jun 21, 2021 8:34 am
Forum: Problem Solving
Topic: What is the range of the prime factors of x, where x is 275?
Replies: 1
Views: 16

#### What is the value of $$\dfrac{r}2 + \dfrac{s}2?$$

##### Re: What is the value of $$\dfrac{r}2 + \dfrac{s}2?$$

What is the value of $$\dfrac{r}2 + \dfrac{s}2?$$ (1) $$\dfrac{r + s}2 = 5$$ (2) $$r + s = 10$$ Answer: D Source: GMAT Paper Tests Target question : What is the value of r/2 + s/2? This is a great candidate for REPHRASING the target question. Since both fractions have the same denominator, we can a...

by [email protected]

Fri Jun 18, 2021 10:52 am
Forum: Data Sufficiency
Topic: What is the value of $$\dfrac{r}2 + \dfrac{s}2?$$
Replies: 1
Views: 35

#### Is the perimeter of square $$S$$ greater than the perimeter of equilateral triangle $$T?$$

##### Re: Is the perimeter of square $$S$$ greater than the perimeter of equilateral triangle $$T?$$

Is the perimeter of square $$S$$ greater than the perimeter of equilateral triangle $$T?$$ (1) The ratio of the length of a side of $$S$$ to the length of a side of $$T$$ is $$4:5.$$ (2) The sum of the lengths of a side of $$S$$ and a side of $$T$$ is $$18.$$ Answer: A Source: Official Guide Target...

#### OG A worker carries jugs of liquid soap

##### Re: OG A worker carries jugs of liquid soap

A worker carries jugs of liquid soap from a production line to a packing area, carrying 4 jugs per trip. If the jugs are packed into cartons that hold 7 jugs each, how many jugs are needed to fill the last partially filled carton after the worker has made 17 trips? A. 1 B. 2 C. 4 D. 5 E. 6 B Did yo...

by [email protected]

Wed Jun 16, 2021 3:37 pm
Forum: Problem Solving
Topic: OG A worker carries jugs of liquid soap
Replies: 3
Views: 2731

#### An office has 6 employees; there are 5 female employees and 1 male employee. In how many ways can a 3-person

##### Re: An office has 6 employees; there are 5 female employees and 1 male employee. In how many ways can a 3-person

Source: Magoosh An office has 6 employees; there are 5 female employees and 1 male employee. In how many ways can a 3-person committee be created if the committee must include the male employee? A. 10 B. 12 C. 15 D. 24 E. 30 The OA is A In order to ensure that the 3-person committee includes the ma...

#### The function f is defined by $$f(x)=\sqrt{x}-10$$ for all positive numbers x. If u=f(t) for some positive numbers t and

##### Re: The function f is defined by $$f(x)=\sqrt{x}-10$$ for all positive numbers x. If u=f(t) for some positive numbers t

Official Guide The function f is defined by $$f(x)=\sqrt{x}-10$$ for all positive numbers x. If u=f(t) for some positive numbers t and u, what is t in terms of u? A. $$\sqrt{\sqrt{u}+10}$$ B. $$(\sqrt{u}+10)^2$$ C. $$\sqrt{u^2+10}$$ D. $$(u+10)^2$$ E. $$(u^2+10)^2$$ OA D f(x) = √x - 10 So, f(t) = √...

#### Helen mixes a first solution, 4 liters of 40% concentrated sulfuric acid solution, with a second solution, 5 liters of a

##### Re: Helen mixes a first solution, 4 liters of 40% concentrated sulfuric acid solution, with a second solution, 5 liters

Helen mixes a first solution, 4 liters of 40% concentrated sulfuric acid solution, with a second solution, 5 liters of a sulfuric acid solution with a stronger concentration, and the resultant solution is 9 liters of 50% concentrated sulfuric acid solution. What was the concentration, as a percent,...

#### Seven children — A, B, C, D, E, F, and G — are going to sit in seven chairs in a row. Child A has to sit next to both B

##### Re: Seven children — A, B, C, D, E, F, and G — are going to sit in seven chairs in a row. Child A has to sit next to bot

Seven children — A, B, C, D, E, F, and G — are going to sit in seven chairs in a row. Child A has to sit next to both B & G, with these two children immediately adjacent to her on either side. The other four children can sit in any order in any of the remaining seats. How many possible configuratio...

#### If $$x$$ and $$y$$ are positive integers, what is the value of $$xy?$$

##### Re: If $$x$$ and $$y$$ are positive integers, what is the value of $$xy?$$

If $$x$$ and $$y$$ are positive integers, what is the value of $$xy?$$ (1) The greatest common factor of $$x$$ and $$y$$ is $$10.$$ (2) The least common multiple of $$x$$ and $$y$$ is $$180.$$ Answer: C Source: GMAT Prep Target question : What is the value of xy? Statement 1 : The greatest common f...