A microorganism kept in a test tube doubles in every 1 minute. If it takes 16 minutes to completely fill the test tube with microorganism, how many minutes will it take to fill one quarter of the test-tube? | Prostuti
1. A microorganism kept in a test tube doubles in every 1 minute. If it takes 16 minutes to completely fill the test tube with microorganism, how many minutes will it take to fill one quarter of the test-tube?
