For the following questions answer them individually
The number of students in a hostel increases from 5400 to 6075. By what percentage should the hostel reduce the per head consumption of food, so that the expenditure on food does not increase?
The following pie chart shows the percentage distribution of employees in five departments of a company XYZ.
How many employees are there in the Marketing and Accounts departments taken together?
The following bar chart shows the number of flowers (in '000 kg) grown by a floriculturist in 5 consecutive years.
The number of flowers grown in Y5 was 15% more than those grown in Y4. The number of flowers grown in Y6 was 20% more than those grown in Y5. What is the difference between the numbers of flowers grown in Y9 and Y4?
The height of a cylinder is 3 cm more than the radius of its base. If the height is 10 cm, then what is the volume of this cylinder? [Use $$\pi = \frac{22}{7}$$]
Points P and Q are 400 km apart. A person starts from P towards Q at 6 a.m. at a speed of 20 km/h. Another person starts from Q towards P at 6:30 a.m. at a speed of 30 km/h. At what time will they meet?
140 liters of a solution is formed by mixing two solutions A and B. The concentrations of milk in A and B are 40% and 75%, respectively. If the resultant solution has a milk concentration of 52%, then what is the quantity of A that is there in the resultant solution?
8 girls and 12 boys can complete a piece of work in 4 days, while 10 girls and 6 boys can complete it in 6 days. How long will 5 girls and 3 boys take to complete this same piece of work?
A man takes 4 hours and 30 minutes to row a boat a distance of 18 km downtream, and 3 hours 30 minutes to row the boat a distance of 7 km upstream. Find the speed of the stream.
What is the value of $$\frac{36 \div 9\times5\div15+7\times3}{6\div12\times3\div12+8\times3}$$?
What should come in place of the question mark (?) in the following mathematical statement?
$$\frac{18}{60} \times \frac{15}{108} \times ? = 19$$