GMAT (Subject) / Economist - Idioms (Lesson)
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- Graphics Interpretation: - The number of participants who reported irritability was about 32% greater in Group.... than in Group D. You can find the correct answer by Ballparking. First use the red bar to find the number of participants who reported irritability in Group D: 22. Since 32% is approximately equal to one-third, the correct answer will be one-third greater than 22. One-third of 22 is approximately 7 since 21*3=7 the value we look for is 29. we can find that value in group A
- Multi-Source-Reasoning: Carl is interested in buying a 1969 Vanar and is negotiating the price with the current owner. The asking price for the car is $64,000, and Carl expects that he will be able to buy the car for the average of the asking price and his initial offer. With significant body work, painting, and reupholstery, the car will be in Very Good condition. If Carl wants to make a profit of $4,000 after repairing and selling the car, what is the highest initial offer he can make? First, you need to determine at what price Carl can purchase the car and still plan to make a profit of $4,000. To do this, you should subtract his profit and the cost of the repairs from the expected price Carl can sell a 1969 Vanar that is in Very Good condition. 1.) Price guide: the expected price Carl can sell the car for is $73,000. Repair Cost Guide: The total cost of repairs is 12500 That means that Carl would need to purchase the car for EARNINGS - COST - PROFIT SURPLUS 73000$ -12500$- 4000$ = 56500 64000 + offer / 2 = 56500 Offer = 49000 . That means that Carl would need to purchase the car for . Finally, Carl expects that he will be able to buy the car for the average of the asking price and his initial offer. So you can solve for what his largest possible offer could be.
- Verbal-based Inference Question: Job description based on information that is communicated verbally. Here, you must determine which of the following statements can be inferred based on the advertisement by Carl's Garage for a mechanic. This is similar to a Reading-Comprehension Inference question, which asks you to make an inference supported by information contained in the passage, without making a big leap in logic. The position advertised is only for a full-time experienced mechanic: Since the last sentence asks job applicants to indicate whether they are available full time or part time, it can be in Employees hired will receive training on repairing Vanar cars.ferred that both types of applicants are being considered: the fact that candidates with some knowledge of Vanars are a big plus indicates that some degree of specialized knowledge is necessary to perform this role, so it can be assumed that training will take place. Most of the work for this position is done in teams: While the ability to work well with others listed under the qualities of a successful applicant indicates that teamwork will be part of the role, there is no indication that this will take up the majority of the work in this role.
- Problem Solving Strategies for IR 1. Understand the Promps What is it? - chart,row,coloms, read tables, labels, ranks What do the points and numbers mean? - percent, dollar, billions What about this? - Purpose, organization, text Why is this part there? - Logic 2. Understand the Question: Read question before Solving 3. Plan your approach Reorganize and Plan on Paper Variables ( REAL NUMBERS ) Devil's advocate when testin both cases Shortcuts (DON'Ts) 4. Solve the Problem Write down labels Count llll ll Write Calculations
- A juice bottling plant has purchased a new electric bottling machine. Working at a constant rate, the machine bottles R liters of juice per hour. As the machine works, it bottles C liters of juice per dollar spent on its operating costs. In terms f R and C, determine how many hours it will take to spend 20 Dollard on the machine's operating costs. Then determine how many dollars will be spent in 3 minutes. Make on choice in each column. First, work with vairables r= litres/hours and c=liters/dollar 1.) we want hours/dollar C/R = hours/dollar => 20dollar * hours/ dollar = 20 hours = 20 C/R 2) Okay, now we want 3 minutes is 1/20 of an hour
- Calculator ONLY ONE CALCULATION possible +- Change Sign Button: 3*(-5) = 3 5 CHANGE SIGN BUTTON √ Square Root button 49 PRESS SQUARE ROOT BUTTON ‰ PERCENT Button 40 - (10% of 40) = 35 40 - 10 %BUTTON = 36 1/x Button 4 1/x = 0.25 c: clear all Button clears displayed numbers remove all numbers to restart calculation CE: clear entry removes ONLY last entry: 32 + 71 CE 71 = 93 OR: <- BUTTON: Backs up one step: MS = Memory Store Button + C = Clear the Displayed MR = Memory Recall Button M+ = Memory Add Button = adds displayed number to number in memory and stores the sum in memory M- = memory subtract: subtracts displayed number from number in memory and stroes the difference in memory
- Both A AND B A very common English idiom is both A and B. Example: Both John and Jane have brown eyes. Common GMAT mistakes are the following: Incorrect: both A as well as BIncorrect: both A along with BIncorrect: both A and also B
- Conclusion Words Many GMAT probability questions will present several scenarios, or several ways (which may consist of a series of events) of reaching the desired result: 1) Calculate the probability of each scenario separately. 2) Since the scenarios are different ways of reaching the same result with an OR relationship between them - ADD the probabilities together.
- as opposed to this view. as opposed to as opposed to this view.
- What percent of the different arrangements of the letters of the word ABACUS are those in which the vowels appear together? You have 3 vowels (A, A, U) in a 6 letter word. Note that 2 of the vowels are identical. If we count the vowels as one term, you have to arrange 4 terms (1 big vowel plus 3 consonants), and they can be arranged in 4! different arrangements. Now, for the arrangements of the vowels. 3 different vowels can be arranged in 3! ways, but since 2 vowels are identical, divide that number by 2! = 3!/2! = 3 (Note that that's exactly asking "in how many different places can we place the odd "U"?). So the number of good choices is the product of the 4! arrangements and the 3 different arrangements of the adjacent vowels = 4!×3 = 24×3 = 72. Now for the total number of possible arrangements. There are 6! choices to arrange 6 letters, but since two letters are identical, you need to divide by 2! - the number of possible arrangements of the identical letters. You get a total of 6!/2! = 720/2 = 360 combinations. The percent of good choices is therefore 72/360 = 1/5 = 20% of the total arrangements.
- What is the minimum number of randomly chosen people needed in order to have a better-than-50% chance that at least one of them was born in a leap year? "at least on of them" = None = 1- P (None) P (born in leap year) = 1/4 Pick 2 people= 3/4×3/4 = 9/16 ---> 1- 9/16 = 7/16 < 0.5 Pick 3 people= 3/4×3/4×3/4 = 27/64. = 1 - 27/64 = 37/64 > 0.5 Thus a minimum of 3 people is needed.
- Succeeding on the GMAT demands not only... but also.. DEMANDS not only.. but also
- He believed that Abraham Lincoln was devoid of believe that... was devoid of ..
- not only.. but also.. A GMAT CAT score is based on not only the number of questions answered correctly but also their difficulty level.