Question 38
ProgressionsFind the product xy if x, 3/2, 6/7, y are in G.P.
- A.24/49
- B.4/7
- C.9/7
- D.7/4
- E.21/8.
Show the answer and explanation
Answer: C (9/7)
Explanation
Common ratio r = (6/7) ÷ (3/2) = 4/7. Then x = (3/2) ÷ (4/7) = 21/8 and y = 6/7 × 4/7 = 24/49, so xy = 21/8 × 24/49 = 9/7.