Quantitative Aptitude
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?
\( 8\tfrac{1}{3}\% \)
\( 11\tfrac{1}{9}\% \)
\( 12\tfrac{1}{2}\% \)
10%
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?\( \text{use } \pi = \frac{22}{7} \)
What is the value of \( \frac{36 \div 9 \times 5 \div 15 + 7 \times 3}{6 \div 12 \times 3 \div 12 + 8 \times 3} \)
\( \frac{528}{529} \)
\( \frac{536}{579} \)
\( \frac{487}{529} \)
\( \frac{485}{569} \)
What should come in place of the question mark (?) in the following mathematical statement?
\( \frac{18}{60} \times \frac{15}{108} \times ? = 19 \)