how many ml of vinegar are needed to prepare 500 ml of 30% vinegar solution

a. 150ml
b. 200ml
c. 300ml
d. 500ml

35g of sugar is dissolved in 400g of water. calculate the mass of sugar solution?

a. 225g
b. 365g
c. 435g
d. 512g

what is the percentage concentration in the following solution: 4g sucrose in 60 grams water?

a. 20.5%
b. 90.6%
c. 6.67%
d. 5.5%​