Find the first term and the common ratio of a G.P whose fourth term is 250 and seventh term is 31,250  Choose the correct choice from the following answers
A) 2/5,25
B) 4,5/2
C) 1,16
D) 2,5
E) 1,5
a*r ^3 = 250, a *r ^6 =31,250, r ^3 =31,250/250 = 125   r = 5, a* 125 = 250, a = 2   ANSWER:2,5
<result>D</result>
Find the first term and the common ratio of a G.P whose fourth term is 250 and seventh term is 31,250