Question 16
ProgressionsThe 8th term of a G.P is 640. If the first term is 5, find the common ratio.
- A.1/2
- B.2
- C.3
- D.1/5
Show the answer and explanation
Answer: B (2)
Explanation
5r⁷ = 640, so r⁷ = 128 = 2⁷ and r = 2.
The 8th term of a G.P is 640. If the first term is 5, find the common ratio.
Answer: B (2)
5r⁷ = 640, so r⁷ = 128 = 2⁷ and r = 2.