Waec Mathematics Past Questions and Answers

Question 821:

• WAEC 2002

The volume of a cylinder of radius 14cm is 210cm³. What is the curved surface area of the cylinder?

A. 15cm²
B. 30cm²
C. 616cm²
D. 1262cm²

Question 822:

• WAEC 2002

Simplify $3\sqrt{12}+10\sqrt{3}-\frac{6}{\sqrt{3}}$

A. $7\sqrt{3}$
B. $10\sqrt{3}$
C. $14\sqrt{3}$
D. $18\sqrt{3}$

Question 823:

• WAEC 2002

Factorize m(2a-b)-2n(b-2a)

A. (2a-b)(2n-m)
B. (2a+b)(m-2n)
C. (2a-b)(m+2n)
D. (2a-b)(m-2n)

Question 824:

• WAEC 2002

If q oranges are sold for t Naira, how many oranges can be bought for p naira?

A. $\frac{p}{2}t$
B. $\frac{qt}{p}$
C. $\frac{q}{pt}$
D. $\frac{pq}{t}$

Question 825:

• WAEC 2002

In the diagram, QRT is a straight line. If angle PTR = 90°, angle PRT = 60°, angle PQR = 30° and |PQ| = $6\sqrt{3}cm$, calculate |RT|

A. 0.3cm
B. $\frac{\sqrt{3}}{2}cm$
C. 3cm
D. $3\sqrt{3}cm$