#1
18th February 2017, 02:18 PM
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Evenly Spaced Sets GMAT
Hi I want some notes on the Evenly-Spaced Sets & Consecutive Integers for the GMAT exam so if you are having the please provide me so I can have an idea??
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#2
18th February 2017, 02:45 PM
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Re: Evenly Spaced Sets GMAT
Well below I have given you the Evenly-Spaced Sets & Consecutive Integers for the GMAT exam so you can have a look [B]Important Properties Evenly-Spaced Sets & Consecutive Integers Background:[/B] Consecutive Integers are evenly-spaced sets – their values go up or down by the same amount (the increment) from one item in the sequence to the next. Evenly-spaced sets have special properties that are tested on the GMAT. Consecutive Multiples: all values in the set are multiples of the increment. e.g. {12,16,20,24} is a set of consecutive multiples because the values increase from one to the next by 4, and each element is a multiple of 4. All sets of consecutive integers are sets of consecutive multiples. All sets of consecutive multiples are evenly-spaced sets. All evenly spaced sets are defined if these 3 things are known: 1) The smallest or largest number in the set. 2) the increment. 3) the number of items in the set. [B]Properties[/B] Consecutive Integers alternate between even and odd: e.g. 9,10,11,12,13,14 (O,E,O,E,O,E) The Arithmetic Mean (ave.) and median are equal in evenly-spaced sets Mean and median of the set are equal to the average of the FIRST and LAST terms in the set. i.e. Ave. = (First + Last) / 2 Sum of the elements in the set equals the arithmetic mean (ave.) number in the set times the number of items in the set. e.g. Sum = Ave. x N (where N is the number of items) |
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