The table shows the number of options a camper can choose from during different sessions at camp. How many different combinations are possible if a camper must choose one option from each session?
A. 25
B. 50
C. 300
D. 1200
E 4800

Three quarters (30 ml) is made up of a 36% acid solution.

Step-by-step explanation:

Since we have given that

Total amount of solution = 40 ml

One- quarter of the solution is given by

Three-quarter of the solution is given by

According to question, we have

10 ml of solution is made up of = 20% of acid solution

30 ml of solution is made up of = say 'c ' of acid solution

40 ml of solution is made up of = 32 % of acid solution

So, our equation becomes,

Hence,  three quarters (30 ml) is made up of a 36% acid solution.