Question

Find the 5th (not fourth) of given geometric sequence. 2000, 1000, 500,...

Answer 1

125

Explanation:

To find the common ratio, take the second term and divide by the first term

1000/2000 = 1/2

We multiply each term by 1/2

2000, 1000, 500

To find the next term 500*1/2 = 500/2 = 250

To find the 5th term

250*1/2 = 125