Quantitative Aptitude - Arithmetic Ability Questions

The angle of elevation of the top of a tower from two horizontal points (in opposite sides) at distances of 25 meter and 64 meter from the base of tower are x and 90° - x respectively . The height of the tower will be

In ∆ABC two medians BE and CF intersects at the point O and P,Q are the midpoints of BO and CO respectively. If the length of PQ=3cm, then the length of FE will be

What should be the missing digit so that the number 347_547 becomes exactly divisible by 11?

A number is divided by 52, we get 27 as remainder. On dividing the same number by 13, what will be the remainder?

At 24% discount the selling price of a washing machine is Rs 38000, what is the selling price if the discount is 40%?

If x/3 - [5(7x/5 - 4/3)]/2 = -x/6, then what is the value of x?

The area of a rectangle is 120 sq cm and its perimeter 140 cm. What is the length of its diagonal?

Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 4 cm, then what is the area (in cm2) of an equilateral triangle with side equal to the bigger diagonal of the rhombus?