If √a=4 and ∛b=a, what is the value of b?Įxplanation: √a=4 means "the square root of a number is 4". The nth root of the number x is the number r, which after powering n is equal to x The formal definition of a root is as follows: The concept of roots is closely related to the topic of exponents and appears frequently on medium and difficult GRE math questions. If we divide the fraction by the same number, It does not change the value of the fraction. How many consecutive integers are larger than -5 and smaller than 6?įraction is represented as x/y, where x is the numerator and y is the denominator.A sample quantitative consecutive integer question is: All numbers on the number line to the left of zero are negative integers, while all numbers to the right of zero on the number line are positive integers. Zero is a special integer and is neither positive nor negative. There are negative integers for all the positive integers. Integers are whole numbers on the number line and can be negative or positive.
Integers are real numbers that have no fractional part (which includes negatives and zeros). There are only a few basic arithmetic formulas and properties of the GRE to master. When candidates start looking at number operations, it can seem like there are a lot of formulas to remember. One must also take care of the concepts of prime factorization of whole numbers, least common multiples (LCM), and greatest common factor (GCF).
The numbers that are only divided by the number itself and 1, are called prime numbers. Numbers like 3, 6, 9, 12, and 15… are said to be multiples of 3. GRE preparation for arithmetic includes topics like percentage calculations for problem-solving, exponent and root concepts for quantitative comparison questions, and data analysis questions. Arithmetic questions can appear in different formats on the GRE. To excel in the GRE arithmetic section, candidates must have a solid grasp of several fundamental mathematical concepts. Candidates must enter numerical entries such as integers and decimals in the mentioned box.
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