Question

1) What weight of sugar syrup would you get if you made 70% sugar syrup from 350g of sugar

Answer 1

1) If we mix up 350g of sugar with some water to make 70% sugar syrup, then 70% of sugar syrup weight is equal to weight of sugar, i.e. 350g
   total weight of sugar syrup will be 350 * 100/70 = 500 g
        2) Similarly, total weight of 30% sugar syrup made with 75g of sugar will be 75 * 100/30 = 250 g