Quantitative Aptitude - Arithmetic Ability Questions

If (-1/2) * ( x - 5) + 3 = -5/2, then what is the value of x?

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to

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

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)

ABCD is an isosceles trapezium such that AD||BC, AB = 5 cm, AD = 8 cm and BC = 14 cm. What is the area (in cm2) of trapezium?

Five men or ten women can complete a job in 20 days. In how many days can 3 men and 4 women complete it?

The length of a chord which is at a distance of 12 cm from the centre of a circle of radius 13 cm is

Find out the odd word/letters/number/number pair from the given alternatives.