Elitmus
Exam
Numerical Ability
Number System
In a gp sum of all succeeding terms of gp is 5/6th of preceding, find r?
Show the method also.
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What are my chances of getting interview calls?any suggestions? - 7 years agoHelpfull: Yes(19) No(49)
- The series is a,ar,ar^2,......
So given that 5*a/6= a*ar*ar^2....
Since it is an infinite series formula is a/(1-r) where first term is not a but ar
So 5*a/6= ar/+1-r)
By solving we get r= 5/11
So - 6 years agoHelpfull: Yes(5) No(0)
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