Quantitative Aptitude - Arithmetic Ability Questions

If √x ­- √y = 1 , √x + √y = 17 then √xy = ?

Weight of A and B are in the ratio 11 : 8. A’s weight increases by 40% and the total weight of A and B increases by 30%. What is the percentage increase in the B’s weight?

What is the area (in sq cm) of an equilateral triangle of side 14 cm?

Reflection of the point (­1,4) in the x­axis 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

Select the odd word/letters/number/number pair from the given alternatives.

PQ is a diameter of a circle with centre O. RS is a chord parallel to PQ subtends an angle of 40° at the centre of the circle. If PR and QS are produced to meet at T, then what will be the measure (in degrees) of ∠PTQ?

The smallest number that must be subtracted from 2800 so that the obtained number is a perfect square is