Categoría: GMAT Focus Edition QUANTITATIVE QUESTION

GMAT QUANT Problem Solving, Difficulty: 700-Level, Combinations, Source: 800 Score, Source: Grockit A local bank that has 15 branches uses a two-digit code to represent each of its branches. The same integer can be used for both digits of a Leer más…

A certain football coach allows his quarterback to call three plays in a row. If the quarterback can choose from 3 passing plays, 4 running plays, and 2 trick plays, how many different arrangements of plays can be run, if the same play can’t be run more than once?

GMAT QUANT Difficulty: 700-Level, Combinations, Source: Veritas Prep in Problem Solving (PS) A certain football coach allows his quarterback to call three plays in a row. If the quarterback can choose from 3 passing plays, 4 running plays, and 2 Leer más…

A password to a certain database consists of digits that cannot be repeated. If the password is known to consist of at least 8 digits and it takes 12 seconds to try one combination, what is the amount of time, in minutes, necessary to guarantee access to database?

GMAT QUANT Difficulty: 700-Level, Combinations in Problem Solving (PS) A password to a certain database consists of digits that cannot be repeated. If the password is known to consist of at least 8 digits and it takes 12 seconds to Leer más…

If a code word is defined to be a sequence of different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J, what is the ratio of the number of 5-letter code words to the number of 4-letter code words?

GMAT QUANT Problem Solving Difficulty: 600-700 Level, Combinations If a code word is defined to be a sequence of different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J, what is the Leer más…

In how many ways can 10 different paintings be distributed between two collectors – Dave and Mona – if both collectors should get an even number of paintings? (All paintings should be given away.)

GMAT QUANT Problem Solving level 700, Combinations In how many ways can 10 different paintings be distributed between two collectors – Dave and Mona – if both collectors should get an even number of paintings? (All paintings should be given Leer más…

The Simplastic language has only 2 unique vowels and 3 unique consonants. Every noun in Simplastic has the structure CVCVC, where C stands for a consonant and V stands for a vowel. How many different nouns are possible in Simplastic?

19 de febrero de 2022 admin

GMAT QUANT Difficulty: 700-Level, Combinations The Simplastic language has only 2 unique vowels and 3 unique consonants. Every noun in Simplastic has the structure CVCVC, where C stands for a consonant and V stands for a vowel. How many different Leer más…

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

19 de febrero de 2022 admin

GMAT QUANT Difficulty: 600-700 Level, Combinations 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 Leer más…

The median is larger than the average for which one of the following sets of integers?

17 de febrero de 2022 admin

STATISTICS GMAT QUANT Solving Problems word problem level 600 700 by Claudio Hurtado clases particulares a domicilio y en línea +56 937780070 The median is larger than the average for which one of the following sets of integers? (A) 8, Leer más…

40% of a club’s revenue comes from people of 25 years of age while 60% of its revenue comes from people of 35 years of age. If the club raises its fee by 20% for its 25 years old members and 30% for 35 years old members, what is the percentage increase in overall revenue of the club?

15 de febrero de 2022 admin

GMAT QUANT Problem Solving Level 600 700, Mixtures proportions ratios 40% of a club’s revenue comes from people of 25 years of age while 60% of its revenue comes from people of 35 years of age. If the club raises Leer más…

A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is decaffeinated, what percent, by weight, of the grocer’s stock of coffee is decaffeinated?

15 de febrero de 2022 admin

GMAT QUANT Problem Solving Level 600 700 , Mixtures proportions ratios A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is Leer más…

We have 100 ml of hot water (at temperature x°C) and 200 ml of water at 48°C. What is the temperature of hot water x°C when the resulting mixture has a temperature of 65°C?

15 de febrero de 2022 admin

GMAT QUANT Problem Solving Level 500 600 Mixtures proportions ratio We have 100 ml of hot water (at temperature x°C) and 200 ml of water at 48°C. What is the temperature of hot water x°C when the resulting mixture has Leer más…

How many liters of chlorine must be added to a 500-liter solution that is 20% chlorine to produce a solution that is 30% chlorine?

How many liters of chlorine must be added to a 500-liter solution that is 20% chlorine to produce a solution that is 30% chlorine? A) 40 B) 59 C) 100 D) 49 E) 70

You have 5 tons of a certain mineral A costing $5,000, 20 tons of another mineral B costing $10,000, and 10 tons of a third mineral C costing $20,000. By mixing the three minerals, a new material is obtained that costs $1,500 per ton. Considering that in the mixture the participation of B is double that of A, in what percentage is C present in the mixture?

Mixtures proportions Ratio Problems Solving Level 600 700 You have 5 tons of a certain mineral A costing $5,000, 20 tons of another mineral B costing $10,000, and 10 tons of a third mineral C costing $20,000. By mixing the Leer más…

Premium tea is $0.6 per ounce and super premium tea is $0.9 per ounce. If the mix of premium and super premium costs $7 for 10 ounces, what is the approximate share of super premium in this mix?

Ratio Mixtures Problem Solving, level 500 600 Premium tea is $0.6 per ounce and super premium tea is $0.9 per ounce. If the mix of premium and super premium costs $7 for 10 ounces, what is the approximate share of Leer más…

The average sales for the year 2021 was 540,000 dollars, if in 4 months of that year the average sale was 200,000, what was the average sale for the other months of that year?

Proportions Ratios Mixture. Word Problems The average sales for the year 2021 was 540,000 dollars, if in 4 months of that year the average sale was 200,000, what was the average sale, in dollars, of the other months of that Leer más…

A group of friends has 10 boys and 20 girls. Average age of boys is 20 years and average age of girls is 17 years. What is the average age of the group?

A sequence of five integers have the following criteria: I. The median of the integers is 6 II. The only mode is 2 III. The mean is 5

4 de febrero de 2022 admin

Problem Solving Word Problem Difficulty: 600-700 Level, Statistics And Sets Problems by Claudio Hurtado clases particulares a domicilio y en línea +56 937780070 A sequence of five integers have the following criteria: I. The median of the integers is 6 Leer más…

Set A consists of the prime factors of the number 22680. If each number in Set A is repeated the same number of times as it appears in the full prime factorization of 22680, what is the mode of Set A?

4 de febrero de 2022 admin

PROBLEM SOLVING GMAT QUANT: Difficulty: 600-700 Level, Number Properties, Statistics And Sets Problems by Claudio Hurtado clases particulares a domicilio y en línea +56 937780070 Set A consists of the prime factors of the number 22680. If each number in Leer más…

If 75 percent of the employees of a certain company take a winter vacation, 40 percent take a winter and a summer vacation, and 20 percent take neither a winter nor a summer vacation, what percent of the employees take a summer vacation but not a winter vacation?

GMAT QUANT Problem Solving Level 500, Overlapping Sets If 75 percent of the employees of a certain company take a winter vacation, 40 percent take a winter and a summer vacation, and 20 percent take neither a winter nor a Leer más…

There are two self-defense techniques used by the monsters on Monster Island: spitting fire balls and blowing freezing wind. Every monster on Monster Island can spit fire balls or can blow freezing wind or can do both. There are 26 monsters on Monster Island. Of the monsters who can spit fire balls, 8 also blow freezing wind. How many of the monsters on Monster Island can use only one of the two self-defense techniques?

GMAT QUANT Problem Solving Level 500, Overlapping Sets There are two self-defense techniques used by the monsters on Monster Island: spitting fire balls and blowing freezing wind. Every monster on Monster Island can spit fire balls or can blow freezing Leer más…

If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly?

GMAT QUANT Problem Solving Level 500, Overlapping Sets If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the Leer más…

Of the films Empty Set Studios released last year, 60% were comedies and the rest were horror films. 75% of the comedies were profitable, but 75% of the horror moves were unprofitable. If the studio made a total of 40 films, and broke even on none of them, how many of their films were profitable?

GMAT QUANT Problem Solving Level 500, Overlapping Sets Of the films Empty Set Studios released last year, 60% were comedies and the rest were horror films. 75% of the comedies were profitable, but 75% of the horror moves were unprofitable. Leer más…

Each of the 80 writers in a certain club is either exclusively lefthanded or exclusively right-handed. If there are 12 more lefthanded writers in the club than right handed writers, how many of the writers are not left-handed?

GMAT QUANT Problem Solving Level 500, Overlapping Sets Each of the 80 writers in a certain club is either exclusively lefthanded or exclusively right-handed. If there are 12 more lefthanded writers in the club than right handed writers, how many Leer más…

Language – Number of students Arabic – 18 English – 16 French – 14 The table above shows the number of students at Adam Zachary High School who are proficient in Arabic, English and French. Three students know all these three languages, five students know Arabic and English only, six students know Arabic and French only and four students know English and French only. How many different students are there in the school?

GMAT QUANT Problem Solving level 600, Overlapping Sets Language – Number of students Arabic – 18 English – 16 French – 14 The table above shows the number of students at Adam Zachary High School who are proficient in Arabic, Leer más…

Harvey runs a 30-mile course at a constant rate of 4 miles per hour. If Clyde runs the same track at a constant rate and completes the course in 90 fewer minutes, how fast did Clyde run?

GMAT QUANT Problem Solving level 600, Distance/Rate Problems Harvey runs a 30-mile course at a constant rate of 4 miles per hour. If Clyde runs the same track at a constant rate and completes the course in 90 fewer minutes, Leer más…

If n is a prime number greater than 3, what is the remainder when n^2 is divided by 12 ?

GMAT QUANT Problem Solving level 600, Remainders If n is a prime number greater than 3, what is the remainder when n^2 is divided by 12 ? (A) 0 (B) 1 (C) 2 (D) 3 (E) 5

A certain barrel is 1/5 full. When k liters of liquid are added to the barrel, it becomes 2/3 full. In terms of k, what is the capacity of the barrel, in liters?

GMAT QUANT Problem Solving level 600, Fractions/Ratios/Decimals A certain barrel is 1/5 full. When k liters of liquid are added to the barrel, it becomes 2/3 full. In terms of k, what is the capacity of the barrel, in liters? Leer más…

If S is the product of the integers from 1 to 100, inclusive, and T is the product of the integers from 1 to 101, inclusive, what is 1/S+1/T in terms of T ?

GMAT QUANT Problem Solving level 600, Arithmetic If S is the product of the integers from 1 to 100, inclusive, and T is the product of the integers from 1 to 101, inclusive, what is 1/S+1/T in terms of T Leer más…

Line J has a y-intercept of 6 and passes through point (a,b). What is the slope of Line J in terms of a and b?

GMAT QUANT Problem Solving level 600, Coordinate Geometry, slop Line J has a y-intercept of 6 and passes through point (a,b). What is the slope of Line J in terms of a and b? A. (a−6)/b B. (a−b)/6 C. (6−a)/b Leer más…

The operation ⊗ is defined by x⊗y=xexp2/y+x/y for all numbers x and y, where y≠0. What is the value of (9⊗(−9))+((−9)⊗9))?