1998 - WAEC Mathematics Past Questions and Answers - page 4

A box contain 2 white and 3 blue identical balls. If two balls are picked at random, one after the other, without replacement, what is the probability of picking two balls of different colours?

In ∆PQR. ∠PQR is a right angle. |QR| = 2cm and ∠PRQ = 60^o. Find |PR|

In the diagram, PQ||SR. Find the value of Z

In $sin(X+30{)}^o=cos{40}^o$,find X

Find the value of X if $cosx=\frac{5}{8}for{0}^o\le X\le {180}^o$

A ladder 5cm long long rest against a wall such that its foot makes an angle 30^o with the horizontal. How far is the foot of the ladder from the wall?

A chord of circle of radius 26cm is 10cm from the center of the circle. calculate the length of the chord

Two chords PQ and RS of a circle intersected at right angles at a point inside the circle. If ∠QPR = 35^o,find ∠PQS

In the diagram, O is the center of the circle and the reflex angle ROS is 264^o. Find ∠RTS

If the exterior angles of quadrilateral are y^o, (y + 5)^o, (y + 10)^o and (y + 25)^o, find y