Mathematics 2000 Waec Past Questions and Answers

Question 46 :

• WAEC 2000

The area of a circle is 38.5cm². Find its diameter [take \(\pi = \frac{22}{7}\)]

A. 22cm
B. 14cm
C. 7cm
D. 6cm

Question 47 :

• WAEC 2000

Find the volume (in cm\(^3\)) of the solid shown above

A. 100cm³
B. 150cm³
C. 175cm³
D. 250cm³

Question 48 :

• WAEC 2000

Solve the equation 3 + 5x - 2x² = 0

A. \(-\frac{1}{2},-3\)
B. 2, 3
C. -2, 3
D. \(-\frac{1}{2},3\)

Question 49 :

• WAEC 2000

If the simple interest on N2000 after 9 months is N60, at what rate per annum is the interest charged?

A. \(2\frac{1}{4}\)%
B. 4%
C. 5%
D. 6%

Question 50 :

• WAEC 2000

(a) Evaluate and express your answer in standard form : \(\frac{4.56 \times 3.6}{0.12}\)
(b) Without using mathematical tables or calculator, evaluate \((73.8)^{2} - (26.2)^{2}\).
(c) Simplify \(\sqrt{1\frac{19}{81}}\), expressing your answer in the form \(\frac{a}{b}\) where a and b are positive integers.