Question

Help me is an exam and its time

Find the missing terms in the geometric sequence below. Then list the common ratio.

2, ____, ____, ____, ____, 6000 r = ?


A)12, 72, 432, 2592, r = 6

B)10, 50, 250, 1250; r = 5

C)10, 50, 250, 1000; r = 5

D)8, 32, 128, 512; r=4

Answer 1

Here i did the work, hope this helps in any way

2,_,_,_,_,6000 r= ?

Lets try each letter,

A,

R= 6 sp 2*6 = 12

2,12

12*6 =72

2,12,72

72*6 = 432

2,12,72,432,

432*6 = 2592

2,12,72,72,2592

2592* 6 = 15552

So this one isnt true

B,

R = 5

2*5 = 10

2,10

10*5=50

2,10,50

50*5 = 250

2,10,50,250

250*5 = 1250

2,10,50,250,1250

1250*5 = 6250

So It isnt B either

C,

R = 5

This one isnt true since it follows the last one but with multiplying error.

That leaves us with D,

R = 4

2*4 =8

2,8

8*4 = 32

2,8,32

32*4 = 128

2,8,32,128

128*4 = 512

2,8,32,128,512

512*4 = 2048

2048* 4 = 8192

So D is no it.

Answer: I dont know, none of these adds up.