Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sec2θ + 1sec2θ - 1 x 12cotθ - tanθ ?

The sum of all prime numbers between 18 and 32 is:

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find the mean of marks of the students of three divisions of Class X.

Present age of Amit is twice of Baman’s present age. After 5 years Baman’s age will be 4 times of the Chetan’s present age. If Chetan celebrated his sixth birthday 7 years ago, then what will be the present age (in years) of Amit?

A bus is running at a speed of 90 kmph. What distance will it cover in 20 seconds?

A sump is filled by three tankers with uniform flow. The first two tankers operating simultaneously fill the sump in the same time during which the sump is filled by the third tanker alone. The second tanker fills the sump 5 hours faster than the first tanker and 4 hours slower than the third tanker. The time required by the first tanker is:

What is the value of Cot 45° - (1/√3)Cosec 60°?

Find the marked price if the selling price is Rs. 9250 and discount is 7.5%.