Data Sufficiency GMAT Math Problems Strategy Online Skype Tutor

За первый год существования предложенное испытание, известное сейчас как Graduate Management Admission Test, было проведено более 2000 раз.  Вторая часть - Data Sufficiency - тоже не из легких. | MBA, GMAT, TOEFL.

Graduate Management Admission Test (GMAT) - это электронный тест для определения уровня знаний и квалификации в математике и логике тех свободных в интеллектуальном смысле людей, которые поступают в бизнес-школы на программы МВА с целью учиться за границами России.

Это вопросы двух типов: на решение количественных задач - quantitative problems -
и на определение достаточности данных - Data Sufficiency.

1. A company's profit was $600,000 in 1980.

What was its profit in 1981?

(1) There was a 20 percent increase in income in 1981.

(2) There was a 25 percent increase in costs in 1981.

 

GMAT sample data sufficiency problems contains a question followed by two statements, numbered (A) and (B). You need not solve the GMAT sample data sufficiency problem

2. If x is an integer, is x an odd number?

(1) x3 is not negative.

(2) x is either a negative number or an odd number, but not both.

 

3. What is the average speed of an automobile as it travels the 300 miles between city A and city B ?

(1) The automobile averages 50 miles per hour for the first three hours.

(2) The automobile averages 45 miles per hour for the last three hours.

 

4. If the ratio of boys to girls attending school S in 1980 was 1:2,
what was the ratio of boys to girls attending school S in 1981?

(1) 50 more boys were attending school S in 1981 than in 1980.

(2) 50 more girls were attending school S in 1981 than in 1980.

 

Математические задачки из GMAT tutoring, 2 часть | 21century tuition – самое интересное. Graduate Management Admission Test

5. In the figure above, does r = t?

(1) The length of AB plus the length of AC equals the length of BC plus the length of CD.

(2) u = s + t.

 

Репетитор по математике и натаскивание. Например, надо не просто решить квадратное уравнение, а разобрать несколько примеров с отрицательным дискриминантом, с отрицательными коэффициентами и т.д.
6. How many of the three different positive integers a, b, and c are divisible by 7?

(1) The product of a, b, and c is divisible by 3, but only c is divisible by 21.

(2) Each of the three positive integers is divisible by 3, but only c is divisible by 21.

 

7. A stock returned what percent of its cost in a dividend at the end of the year?

(1) The amount of the dividend was less than 10 percent of the cost of the stock.

(2) The amount of dividend paid on each share was $1.20; and the stock cost $60 per share.

 

8. What is the average (arithmetic mean) of the ages of Mark, Paul, Edward, Maxine, and Linda?

(1) The average (arithmetic mean) of the ages of Mark, Paul, and Edward is 20 years.

(2) The average (arithmetic mean) of the ages of Maxine and Linda is 25 years.

 

Graduate Management Admission Test (GMAT) используется бизнес-школами в качестве некоего универсального показателя академических  Data Sufficiency (от 13 до 14 вопросов) E. Optional 5 Minute Break F. Verbal Section (75 минут) Critical Reasoning (от 14 до 15 вопросов)
The quantitative section of the GMAT measures the ability to reason quantitatively, solve quantitative problems, and interpret graphic data.
Questions require knowledge of arithmetic, elementary algebra and commonly known concepts of geometry.
There are two types of quantitative questions: problem solving and data sufficiency.
Scores range from 0 to 60, although they only report scores between 11 and 51.
 
Problem solving questions are designed to test the ability to reason quantitatively and solve quantitative problems.
Data sufficiency questions are designed to measure the ability to analyze a quantitative problem, recognize which data are relevant and determine at what point there is enough data to solve the problem.

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