For the following questions answer them individually
A work that could be completed in 10 days was completed in 8 days as 5 more men joined at the start of work. What was the total number of men before the 5 men joined?
The average of X, Y and Z is 2X. If the average of Y and Z is 20, then what is the value of X?
A merchant bought 60 sheep at ₹120 per sheep. He sold 40 of them at ₹150 each. Another 10 of the sheep died. What should be the selling price of each remaining sheep, if he wants a total profit of ₹800?
The following table shows the number of cars of 6 different brands on the roads during a given year.
The cars of brand B2 are what percentage of the number of cars of all the 6 given brands taken together? [Give your answer correct to 2 decimal places.]
The volume of a right circular cone is 196$$\pi\ $$ $$cm^{3}$$. If the area of its base is 154 $$cm^{2}$$, what is the vertical height of the cone? (in cm) [Use $$\pi = \frac{22}{7}$$]
The area of a circle is 15400 $$cm^{2}$$. What is the positive difference between the radius and the circumference of the circle? [Use $$\pi = \frac{22}{7}$$]
In a class of 50 students and 6 teachers, each student got a number of chocolates that is equal to 16% of the total number of students, and each teacher got a number of chocolates that is equal to 12% of the total number of students. How many chocolates were there in total?