Question

common ratio Gp of 25,-5,1,-1/5​

Answer 1

Answer:

common ratio of any gp=2nd term/1st term=3rd term/2nd term=4th term/3rd term and so on

so common ratio of this gp=-5/25=1/-5=(-1/5)/1

which will be-1/5

Answer 2

Answer:

common ratio r = 2nd term/1st term or ratio of succeeding term to that of preceding term

=> -5/25 = -1/5 [ 2nd term/1st term ]

=> verification 3rd term/2nd term

=> 1/-5 = -1/5

therefore r = -1/5