The average monthly salary of all the employees in an industry is Rs. 12,000. The average salary of male employees is Rs. 15,000 and that of female employees is Rs. 8,000. What is the ratio of male employees to female employees?

If p = 124, $$3\sqrt{p(p^2-3p+3)-1}=?$$

Two containers have acid and water mixed in the ratio 3:1 and 5:3 respectively. To get a new mixture with ratio of acid to water as 2:1, the two types of mixture have to be mixed in the ratio?

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 2 : 3 : 5 respectively. If the value of all the coins is ₹5.25. then how many 5 p coins are there in the bag?

If A works alone, he would take 4 days more to complete the job than if both A and B worked together. If B worked alone, he would take 16 days more to complete the job than if A and B work together. How many days would they take to complete the work if both of them worked together?

In a class, there are certain numbers of students. Their average age is 12 years. If two students leave the class, their ages are 23 years and 25 years respectively. Then the average age of the class becomes 11 years. Find the number of students in the class.

A dishonest dealer sells the goods at 7% loss on cost price but uses 18% less weight. What is his percentage of profit? (Correct to 2 decimal places)

The value of x for which the expressions 7x + 13 and 13x - 7 become equal is _____ .