Question

Find four geometric means between 25 and 800.


50, 125, 275, 450

50, 150, 450, 750

50, 100, 200, 400

75, 150, 300, 750

Answer 1

They are asking for a geometric sequence such that the first term is 25, then four more terms, and the the sixth term is 800

25 __?__ __?__ __?__ __?__ 800

In the first three answer choices, the second term is 50.
The first term is give as 25.
The common ratio is 50/25 = 2
Use this common ratio to find the third, fourth and fifth term and see which answer fits.