UNN Mathematics 2015/2016 Past Questions

The integral values of y which satisfy the inequality, -1 < 5 - 2y ≤ 7 are

A regular polygon with (2m + 1) sides has each interior angle equal to 144°. The value of m is

An observer standing on the top of a building 40m high views a stone on the ground level at an angle of depression of 38°. The distance of the stone from the foot of the building, in metres, is equal to

If the mass of a solid metal sphere of radius 3cm is 9kg, the mass of a spherical shell of the same metal whose internal and external radii are 2cm and 3cm respectively is

X is a variable point which is equidistant from two parallel lines PQ and RS of equal lengths such that PQRS forms a rectangle. If X^PQ = 25°, then R^XS is

The average age of the three children in a family is 9 years. If the average age of their parents is 39 years, the average age of the whole family is

A photograph is to be taken of five people including a married couple. If the married couple insist on sitting next to each other, the number of different arrangements is

The binary operations . and x are defined over the set of real numbers by a . b - ab - b - 1 and a x b - ab + b - 2. Find the value of 3 x (4 . 5)

A pump P can fill a water tank in 5h. With a second pump Q also operating, the tank can be filled in 2h. Pump Q operating alone can fill the tank in

If x - 1, x, x + 2 form a geometric sequence, then the value of x is