Answer:
a = 5 ml of 50% syrup solution will be used
Explanation:
Let us suppose the 50% of the solution being used as "a"
(30 - a) then will be the amount of 1/200 solution used and the equation will be as follows,
0.5a +0.05(30 -a) = 1/8 (30)
0.5a + 1.5 -0.05a= 3.75
0.45a = 2.25
a = 5 ml