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  Find r, if the given value of x is the rth term of the given A.P. :  

                    25, 50, 75, 100, …….. x = 1000

Asked by Topperlearning User 26th July 2017, 1:27 PM
Answered by Expert
Answer:

Given A.P. is 25, 50, 75, 100 …..  x =1000

            Here                                 

                                          

                 x is the rth term

                                          

            i.e.,                            1000 = 25 + (r – 1) 25

                                         1000 = 25 + 25r – 25

                                         1000 = 25r

                                          Ans.

Answered by Expert 26th July 2017, 3:27 PM
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