Question

A scientist had a bottle that contains 15.6mL of solution. She used 3.2mL of the solution for an expierment. She poured half of the solution remaining in the bottle into a breaker. Finally she poured 6mL of solution remaining in the bottle into a test tube. How many mL of solution remained in the bottle?

Answer 1

Amount of solution in the Bottle 15.6 mL
Amount used: 3.2mL
remaining soltuion=15.6-3.2=12.4 mL
Amount of solution in breaker=1/2*12.4=6.2 mL
amount remaining in the bottle=12.4 mL
amount poured in the test tube=6 mL
amount that remained in the bottle=12.4-6=6.4 mL