Question

Your class is conducting an experiment to study geometric sequences. The class forms a line. The first person takes a whole pizza, divides it in half, keeps half, and hands the other half to the next person. The next people in line do the same thing with their pieces. Which portion of the whole pizza does the seventh person in line get?

A) 1/256

B) 1/64

C) 1/128

D) 1/32

ONLY ANSWER IF U KNOW THE CORRECT ONE !!! THANKS :)

Answer 1

A is the answer. Because every time you half a fraction, it's like timesing the denominator by 2. So like a half into a quarter, and a quarter into eighths.
As for your question. You keep on halving your fraction until you have done it seven times.
I think I've done it correctly and I got 1/256, but I didn't really have a calculator with me. If you are doubtful, I suggest just checking if it's right with a calculator