a) 4 : 5

b) 5 : 6

correct answer is: a) 4 : 5

Explanation

The first mixture acid and water ratio is 4 : 5 or \large\frac{4}{5}
The second mixture acid and water ratio is 5 : 6 or \large\frac{5}{6}
If we bring the denominator same, we get:
\large\frac{4}{5}=\frac{4\times6}{5\times6}=\frac{24}{30}\normalsize ---(1)
\large\frac{5}{6}=\frac{5\times5}{6\times5}=\frac{25}{30}\normalsize ---(2)
\therefore In the first mixture water quantity is \left(30-24\right)=6
And, in the second moisture water quantity is \left(30-25\right)=5
\therefore First mixture (4 : 5) water quantity is higher.
Ans: 4 : 5 is the first mixture where water quantity is higher.

These precise math questions can also be expressed as:

1. Compare the water levels of two mixtures with ratios of acid to water as 4 : 5 and 5 : 6. Which mixture has a higher water quantity?
2. Identify the mixture with a higher water content between two solutions with acid to water ratios of 4 : 5 and 5 : 6.
3. Compare the ratios of acid to water in two mixtures, given as 4:5 and 5 : 6. Determine which mixture contains a higher quantity of water.