How much pure alcohol can be added to 700 ml of an 18% solution to make its strength 30%? ( ADP COMPANY)

How much pure alcohol can be added to 700 ml of an 18% solution to mak

1.	How much pure alcohol can be added to 700 ml of an 18% solution to make its strength 30%? ( ADP COMPANY)
A.	100 ml
B.	60 ml
C.	120 ml
D.	140 ml
Answer» D. 140 ml