of the resulting bacterian divides it two again ,etc .After one minute the glass is full .when was the glass one fouth full

Question

options  

a 15 min 

b 58 seconds

c 59 seconds 

d 1/ hour

Answer 1

At 59 seconds it was half full.

At 58 seconds it was one quarter full.

At 57 seconds it was one eighth full.