Math Question: If exactly 3 squoshes= 1 tad, and 11 tads= 1 bit, how many sqoshes are in 5 bits?

This is for my chem cl, im in pre calc so I think im over thinking the question... I havea nother chem wuestion too i am overthinking: If you splash water out of the cylender when you add a eraser would the measurment of the volume if the stopper have been too high or low? Im confused it says eraser then stopper are those the same thing?