Answer the following question by selecting the most appropriate options.

There were $75$ liters of pure milk in a vessel. $24\text{\%}$ of the pure milk was taken out and replaced with equal quantity of water, then $20$ liters of the mixture of milk and water was taken out. After this $5$ liters of milk and $10$ liters of water were added to the mixture. What is the respective ratio of water and milk in the final mixture?

Answer the following question by selecting the most appropriate option.

A tank is $\frac{3}{5}th$ empty. When $26$ litres of water are added, it becomes $\frac{12}{17}th$ full, what is the capacity of the tank? (in litres)

Of the three numbers the average of the first and second number is greater than the average of the second and the third number by $39$, then what is the difference between the first and the third number?

Answer the following question by selecting the most appropriate options.

In an examination, a student scores $6$ marks for every correct answer and loses $2$ marks for every wrong answer, if he attempts all $74$ questions and secures $196$ marks, what is the number of questions attempted correctly?

What will come in place of the question mark (?) in the given question.

$6, 7, 16, 51 ? 1045$

Answer the following question by selecting the most appropriate options.

$1,9,36,100,?,441$

What will come in place of the question mark (?) in each of the following number series?

$51, 52, 61, 86, 135, ?$

What will come in place of the question mark (?) in each of the following number series?

$453, 466, 505, 622, ?$

Find the missing term.

$10,110,1210,?,146410$