Search found 2087 matches
Re: Is x>0?
Is x>0? 1) x^2=9x 2) x^2=81 OA C Source: Veritas Prep 1) \(x^2=9x \Rightarrow x^2-9x =0 \Rightarrow x(x-9)=0\) \(x\) can be \(0\) or \(9\). No Sufficient \(\Large{\color{red}\chi}\) 2) \(x^2=81 \Rightarrow x^2-81=0 \Rightarrow (x-9)(x+9)=0\) \(x\) can be \(-9\) or \(9\). Not Sufficient \(\Large{\co...
- by swerve
Mon Jun 27, 2022 10:07 am- Forum: Data Sufficiency
- Topic: Is x>0?
- Replies: 1
- Views: 29
If S is a finite set of consecutive even numbers, is the median of S an odd number?
Data Sufficiency
Re: If S is a finite set of consecutive even numbers, is the median of S an odd number?
If S is a finite set of consecutive even numbers, is the median of S an odd number? (1) The mean of set S is an even number. (2) The range of set S is divisible by 4. OA D Source: Manhattan Prep We need to recall the following for this problem: - "If the number of terms in a set of consecutive even...
- by swerve
Mon Jun 27, 2022 10:00 am- Forum: Data Sufficiency
- Topic: If S is a finite set of consecutive even numbers, is the median of S an odd number?
- Replies: 1
- Views: 59
Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles
Problem Solving
Re: Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 mile
Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles per hour. Approximately how many minutes more will it take to travel along this section of highway at the new speed limit than it would have taken at the old speed limit ? (A) 5 (B)...
- by swerve
Mon Jun 27, 2022 9:45 am- Forum: Problem Solving
- Topic: Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles
- Replies: 1
- Views: 60
John has 5 friends who want to ride in his new car that can accommodate only 3 passengers at a time. How many different
Problem Solving
Re: John has 5 friends who want to ride in his new car that can accommodate only 3 passengers at a time. How many differ
John has 5 friends who want to ride in his new car that can accommodate only 3 passengers at a time. How many different combinations of 3 passengers can be formed from the 5 friends? A) 3 B) 8 C) 10 D) 15 E) 20 OA C Source: GMAT Prep Let's try as follows, There are only \(3\) places\(: + + + \) But...
- by swerve
Mon Jun 27, 2022 9:39 am- Forum: Problem Solving
- Topic: John has 5 friends who want to ride in his new car that can accommodate only 3 passengers at a time. How many different
- Replies: 1
- Views: 50
Ten years ago, Dorothy deposited a certain amount of money in Account A at a 3% simple annual interest rate. At the same
Data Sufficiency
Re: Ten years ago, Dorothy deposited a certain amount of money in Account A at a 3% simple annual interest rate. At the
Ten years ago, Dorothy deposited a certain amount of money in Account A at a 3% simple annual interest rate. At the same time, Marla deposited another amount in Account B at a 4% simple annual interest rate. If there were no withdrawals or deposits during the 10 years since the deposits, is the cur...
- by swerve
Fri Jun 17, 2022 9:16 am- Forum: Data Sufficiency
- Topic: Ten years ago, Dorothy deposited a certain amount of money in Account A at a 3% simple annual interest rate. At the same
- Replies: 1
- Views: 116
Mark’s clothing store uses a bar-code system to identify every item. Each item is marked by a combination of 2 letters
Problem Solving
Re: Mark’s clothing store uses a bar-code system to identify every item. Each item is marked by a combination of 2 lette
Mark’s clothing store uses a bar-code system to identify every item. Each item is marked by a combination of 2 letters followed by 3 digits. Additionally, the three-digit number must be even for male products and odd for female products. If all apparel products start with the letter combination AP,...
- by swerve
Fri Jun 17, 2022 8:59 am- Forum: Problem Solving
- Topic: Mark’s clothing store uses a bar-code system to identify every item. Each item is marked by a combination of 2 letters
- Replies: 1
- Views: 129
Re: If the measure of one of the interior angles of a quadrilateral is
If the measure of one of the interior angles of a quadrilateral is 110° what is the sum of the measures of the other 3 interior angles? A. 220° B. 250° C. 300° D. 330° E. 360° OA B Source: Princeton Review First, recall the following The sum of all of the interior angles of a quadrilateral is equal...
- by swerve
Fri Jun 17, 2022 8:54 am- Forum: Problem Solving
- Topic: If the measure of one of the interior angles of a quadrilateral is
- Replies: 1
- Views: 100
A hotel has two types of rooms: basic and deluxe. On a certain night, the hotel rented 75% of its rooms, including 2/3
Data Sufficiency
Re: A hotel has two types of rooms: basic and deluxe. On a certain night, the hotel rented 75% of its rooms, including 2
A hotel has two types of rooms: basic and deluxe. On a certain night, the hotel rented 75% of its rooms, including 2/3 of its basic rooms. What percentage of the rooms that were not rented on that night were basic? (1) 60% of all the rooms in the hotel are basic (2) On that night, 12.5% of the delu...
- by swerve
Mon Mar 28, 2022 1:04 pm- Forum: Data Sufficiency
- Topic: A hotel has two types of rooms: basic and deluxe. On a certain night, the hotel rented 75% of its rooms, including 2/3
- Replies: 1
- Views: 379
If the length of a rectangle is decreased by 10% and its width is decreased by 20%, by what percent does its area
Problem Solving
Re: If the length of a rectangle is decreased by 10% and its width is decreased by 20%, by what percent does its area
If the length of a rectangle is decreased by 10% and its width is decreased by 20%, by what percent does its area decrease? A. 30% B. 28% C. 25% D. 23% E. 15% OA B Source: Princeton Review Area of rectangle \(=\) length * breadth Area \(= l*b\) New length \(=0.9 l\) New breadth \(=0.8 b\) New area ...
- by swerve
Mon Mar 28, 2022 12:56 pm- Forum: Problem Solving
- Topic: If the length of a rectangle is decreased by 10% and its width is decreased by 20%, by what percent does its area
- Replies: 2
- Views: 304
Which of the following, if solved, would yield the set of all real numbers that are exactly 15 units away from -3?
Problem Solving
Re: Which of the following, if solved, would yield the set of all real numbers that are exactly 15 units away from -3?
Which of the following, if solved, would yield the set of all real numbers that are exactly 15 units away from -3? A. |x + 3| = 15 B. |x - 3| = 15 C. |x - 15| = 3 D. |x + 15| = 3 E. |x + 15| = -3 OA A Source: Veritas Prep \(15\) units away from \(-3 = -3+15=12\) and \(-3-15=-18\) In A we have \(x+3...
- by swerve
Mon Mar 28, 2022 12:50 pm- Forum: Problem Solving
- Topic: Which of the following, if solved, would yield the set of all real numbers that are exactly 15 units away from -3?
- Replies: 1
- Views: 292
Edwin is planning to drive from Boston to New Orleans. By what percent would his travel time be reduced if Edwin decides
Data Sufficiency
Re: Edwin is planning to drive from Boston to New Orleans. By what percent would his travel time be reduced if Edwin dec
Edwin is planning to drive from Boston to New Orleans. By what percent would his travel time be reduced if Edwin decides to split the driving time equally with his friend George, instead of making the trip alone? (1) The driving distance from Boston to New Orleans is 1500 miles. (2) George’s drivin...
- by swerve
Sun Mar 06, 2022 6:10 am- Forum: Data Sufficiency
- Topic: Edwin is planning to drive from Boston to New Orleans. By what percent would his travel time be reduced if Edwin decides
- Replies: 1
- Views: 342
Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid D dollars per hour for the first 30
Data Sufficiency
Re: Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid D dollars per hour for the first 3
Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid D dollars per hour for the first 30 hours and (D+ 10) dollars per hour for the hours worked in excess of 30 hours. What is the value of D? (1) Last week Peter worked for 32 hours. (2) Peter got paid $8(D+10) more if w...
- by swerve
Sun Mar 06, 2022 5:59 am- Forum: Data Sufficiency
- Topic: Peter works as a teaching assistant and gets paid on a weekly basis. He gets paid D dollars per hour for the first 30
- Replies: 1
- Views: 340
The sum of 3 hours 45 minutes and 2 hours 55 minutes is approximately what percent of a day?
Problem Solving
Re: The sum of 3 hours 45 minutes and 2 hours 55 minutes is approximately what percent of a day?
The sum of 3 hours 45 minutes and 2 hours 55 minutes is approximately what percent of a day? (A) 14% (B) 16% (C) 24% (D) 28% (E) 72% OA D Source: GMAT Prep Try as follows \(3h45+2h55= 5h(45+55)=5h(1h40)=6h40\) Then, \(100\% \cdot \dfrac{6h40}{24h}\) is between \(~ \dfrac{6\cdot4}{100}\; ~24\%\) and...
- by swerve
Sun Mar 06, 2022 5:45 am- Forum: Problem Solving
- Topic: The sum of 3 hours 45 minutes and 2 hours 55 minutes is approximately what percent of a day?
- Replies: 1
- Views: 248
A company plans to assign identification numbers to its employees. Each number is to consist of four different digits
Problem Solving
Re: A company plans to assign identification numbers to its employees. Each number is to consist of four different digit
A company plans to assign identification numbers to its employees. Each number is to consist of four different digits from 0 to 9, inclusive, except that the first digit cannot be 0. How many different identification numbers are possible? (A) 3,024 (B) 4,536 (C) 5,040 (D) 9,000 (E) 10,000 OA B Sour...
- by swerve
Sun Feb 27, 2022 6:50 am- Forum: Problem Solving
- Topic: A company plans to assign identification numbers to its employees. Each number is to consist of four different digits
- Replies: 1
- Views: 259
Word Problems
A vendor sells specialty gift baskets at a price of \(\$50.00\) per basket, which represents a markup of \(25\%\) above the cost to produce each basket. The vendor prepared and delivered an order of \(120\) baskets to a customer. However, that customer returned \(15\) baskets and requested a partial...
- by swerve
Sun Feb 20, 2022 5:18 am- Forum: Problem Solving
- Topic: Word Problems
- Replies: 0
- Views: 138