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GMAT Math

Math Formula

QuestionAnswer
Average = (Sum of values)/(Number of values)
Weighted average of n terms = (Percent1)(Average1) + (Percent2)(Average2) + (Percent3)(Average3) + .....
Rate A per B = (Quantity of A)/(Quantity of B)
Speed = Distance/ Time
Average A per B = (Total A)/(Total B)
Average speed = (Total distance)/(Total time)
Combined Work formula = => (1/T) = (1/A)+(1/B) + .....+(1/N) => T = (AB/A+B)
Simple interest formula = P*(1+rt)
Compound interest formula = P*(1+r)^t
Formula for Overlapping Sets = Group 1 + Group 2 - Both + Neither = Total
If the overlapping formula doesn't work, use ________ and ________. Venn diagram; table
Created by: U0105006
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