Q5 of 167 Page 20

Mark the correct alternative in the following:

In A.M.’s are introduced between 3 and 17 such that the ratio of the last mean to the first mean is 3 : 1, then the value of n is


Let a=4 ;b=17


Let a1,a2,a3,…an be the n A.M’s between 3 and 17


Then, common difference is given by





Now,





And





Now, given that







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