Quantitative Aptitude - Arithmetic Ability Questions

If cotA/√(1 + cot2A) = x, then the value of x is

On a ground , there is a vertical tower with a flagpole on its top . At a point 9 m away from the foot of the tower , the angles of elevation of the top and bottom of the flagpole are 60° and 30° respectively . The height of the flagpole is

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

The value of sinθ1+cosθ + sinθ1-cosθ

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

The mode of the data 12, 1, 10, 1, 9, 3, 4, 9, 7, 9 is

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.