List of top Logical Reasoning Questions asked in GRADUATE APTITUDE TEST-BIOTECHNOLOGY

There are 30 boys and 60 girls in a class. If the average age of boys is 12 years and the average age of girls is 10 years, what is the average age of the whole class?
The acute angle between hour and minute hands of a wall clock when the time shown by it is 02:15 is equal to:
\( 9.6 \times 3.6 \div 7.2 + 10.8 { of } \frac{1}{18} - \frac{1}{10} = ? \)