Pls Answer

Asked by  | 28th Aug, 2009, 01:43: PM

Expert Answer:

1. 3,6,9,12.............  is not A.P

Since the difference between two suceesive numbers is not constant.

i.e 6 -   9 - 6

2. 4,9/2,5,11/2,6............ = 4, 4.5, 5, 5.5,6......... is an A.P.

Since the difference between two succesive number is constant.

i.e 4.5 - 4 = 5-4.5 = 0.5

Hence the answer.

 

Answered by  | 28th Aug, 2009, 02:29: PM

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