Quantitative Aptitude - Arithmetic Ability Questions

The value of the expression 2(sin6θ+cos6θ) - 3(sin4θ+cos4θ) + 1 is

The ratio of present ages of Anil and Aakash is 4 : 5. Three years later their ages will be in ratio 7 : 8. What is the present age (in years) of Anil?

A person driving at the speed of 40 kmph reaches office 1 minute early while he reaches 3 minutes late if driving at 36 kmph. What is the distance in km that she is covering?

P and Q can do a project in 20 and 12 days respectively. In how many days can they complete 40% of the project if they work together?

The mean of the data 1, 2, 10, 18, 3, 17, 19 is

What is the value of 9991 x 10009?

In triangle PQR, A is the point of intersection of all the altitudes and B is the point of intersection of all the angle bisectors of the triangle. If ∠PBR =105°, then what is the value of ∠PAR (in degrees)?

The prices of chairs and tables are in the ratio of 9 : 5. If the chairs cost Rs. 4200 more than the tables, find the price of the tables? (in Rs.)