Quantitative Aptitude - Arithmetic Ability Questions

If √(cosec2A - 1) = x, then the value of x is

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

The perimeters of a square and an equilateral triangle are equal. If the diagonal of the square is 9 cm, what is the area of the equilateral triangle?

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

Point P is the midpoint of segment AB. Co-ordinates of P are (5,-4) and A are (7,0). What will be the co-ordinates of point B?

If 2x-12x = 5, then what is the value x2 + 116x2 - 2

What is the value of the expression a3 - 5 + 2816a, when a = 2?

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?