Question

!!~~(this is multiple choice) ~~!!

what is the next term in the sequence?

1/160, -1/40, -1/10, -2/5, 8/5, . . . . . ?

a) 2/5
b) 32/5
c) -8/5
d) -32/5

Answer 1

1/160 • 4 = 1/40, but -

-1/40 • 4 = -1/10

So the next term is 8/5 • 4 which 32/5.

Ok we know it's 32/5, but not sure if it's positive or negative. So it's option B or D.

First term is positive

Second, third, fourth is negative.

Fifth is positive.

So I think sixth term is going to be negative.

If I am right, the order should look like this:

+ - - - + - - - + - - - .......

Therefore, it's -32/5, option D

Answer: D

//I am not sure if it's B or D, but I tried and hopefully it helps.