If 5 ml of 20% ethanol is mixed with 25 ml of 80% ethanol, the resulting solution will approximately be
(1) 50% ethanol
(3) 100% ethanol
(2) 70% ethanol
(4) 80% ethanol

If 5 ml of 20% ethanol is mixed with 25 ml of 80% ethanol, the resulting solution will approximately be
(1) 50% ethanol
(3) 100% ethanol
(2) 70% ethanol
(4) 80% ethanol