What is the diameter of a circle of area 77cm² (take $\pi =\tfrac{22}{7}$ ) 

The lengths of the adjacent sides of a right-angled triangle are xcm, (x – 1)cm. If the length of the hypotenuse is $\sqrt{13}cm$ find the value of x

From a point R 300m north of P, a man walks eastwards to a place Q which is 600, from P. Find the bearing of P from Q correct to the nearest degree.

In the diagram, PQRS is a parallelogram and $\angle QRT={{30}^{\circ }}$. Find x .

In the diagram, PQ and MN are straight lines. Find the value of x

The probability that John and James passes an examination are $\tfrac{3}{4}$ and $\tfrac{3}{5}$ respectively. Find the probability of both boys failing the examination.

Make f  the subject of the relation $v=u+ft$

Expand $(2x-3y)(x-5y)$

Solve the equation ${{2}^{7}}={{8}^{5-x}}$

Convert 101101_two to a number in base ten