FIND THE ARITHMETIC MEAN OF FIRST 18 MULTIPLES OF
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Answer:Thus, for the calculation of average of the first six multiples of 6 = (6+12+18+24+30)6= 15. One other alternative to solve this question is by arithmetic progression: While closely observing, it is an A.P = 6,12,18,24,30. By putting the values in the formula= 5/2[2 x 6 + 4 x 6] = 2.5(36) = 90
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