GMAT MATH FORMULAS - EMPOWERgmat

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GMATMATHFORMULASEMPOWER SUMMARYEMPOWERgmat MAXIMUM IMPROVEMENT MADE EFFICIENTSectionQUANTQuestion TypeCategoryALLMATHFORMULASNOTE: This packet is to be used in conjunction with the Modules in yourEmpower GMAT Course. This packet is NOT designed to be a completetreatment of any subject herein.

MATH FORMULASThe most powerful EMPOWER tactic for the Quantitative section of the GMATWHY Learn GMAT Math Formulas?1. Including Geometry, more than half the questions in the Quant section involve a specific math formula (or more than1), so knowing the formulas is a must to solving the problem.2. Math formulas can be used to answer many different versions of the same question.3. TRIAGE can become easier in some cases by using the formula to estimate the approximate answer to a question.Average Formulas:Average Interest Formulas:Simple Interest: Principal x (1 Rate x Time)Compound Interest:P Principle investment, r interest rate, t time in yearsDistance Formula:Distance Rate x TimeCombined Rate:For objects traveling toward each other:Distance Between (Rates Added) x (Time to meet)EMPOWERgmat SectionQUANTQuestion TypePS/DSCategoryMATHFORMULASNOTE: This packet is to be used in conjunction with the Modules in yourEmpower GMAT Course. This packet is NOT designed to be a completetreatment of any subject herein.

MATH FORMULASChase Down:Distance Ahead (Rates Subtracted) x (Time to chase down)Example:Work Formula:Work time to finish the job working togetherA and B represent the time it takes for each individual to finish the job aloneExample:Overlapping Sets:You’ll see one, possibly two overlapping sets questions. These questions involve any two traits. Some will share both, some neither, someone and not the other.Example:A pet kennel houses 300 pets over the course of a week. Ofthe pets housed, 200 were dogs and 140 were groomed atthe kennel. If 10 of the pets are neither dogs nor groomed,then how many pets were dogs that were not groomed?(A) 50(B) 90(C) 140(D) 150(E) 160SectionQUANTUse the EMPOWER Tic-Tac-Toe 200100300EMPOWERgmat Question TypePS/DSCategoryMATHFORMULASNOTE: This packet is to be used in conjunction with the Modules in yourEmpower GMAT Course. This packet is NOT designed to be a completetreatment of any subject herein.

MATH FORMULASPermutations:Note: Multiple events means multiply! This rule applies to ALL permutation, combination and probability questions insome way.No math formula required. Draw a picture, keep track of the results and 0Combinations:Combination Formulan Number of itemsk Number of items to be selectedExample:EMPOWERgmat SectionQUANTQuestion TypePS/DSCategoryMATHFORMULASNOTE: This packet is to be used in conjunction with the Modules in yourEmpower GMAT Course. This packet is NOT designed to be a completetreatment of any subject herein.

MATH FORMULASProbability:Probability “and” Multiply“or” AddExample:Example:EMPOWERgmat SectionQUANTQuestion TypePS/DSCategoryMATHFORMULASNOTE: This packet is to be used in conjunction with the Modules in yourEmpower GMAT Course. This packet is NOT designed to be a completetreatment of any subject herein.

GMAT MATH FORMULAS QUANT ALL MATH FORMULAS NOTE: This packet is to be used in conjunction with the Modules in your Empower GMAT Course. This packet is NOT designed to be a complete treatment of any subject herein. Section Question Type Category EMPOWERgmat MAXIMUM IMPROVEMENT MADE EFFICIENT EMPOWER SUMMARY. MATH FORMULAS The