Waec Mathematics 2003 Past Questions and Answers

Question 46:

• WAEC 2003

The bearing of P from Q is x, where 270^o < x < 360^o. Find the bearing of Q from P

A. (x - 90)^o
B. (x-270)^o
C. (x - 135)^o
D. (x - 180)^o

Question 47:

• WAEC 2003

Which of the following is not a measure of dispersion?

A. Range
B. Mean deviation
C. Mean
D. Standard deviation

Question 48:

• WAEC 2003

(a) If p varies directly as \(r^{2}\) and p = 3.2 when r = 4, find the value of p when r = 6.5.
(b) Solve the simultaneous equations :
\(\frac{x}{2} + \frac{y}{4} = 1 ; \frac{x}{3} - \frac{y}{4} = \frac{-1}{6}\)

Question 49:

• WAEC 2003

Without using Mathematical tables or a calculator, simplify :
(a) \(\sqrt{50} - 3\sqrt{2}(2\sqrt{2} - 5) - 5\sqrt{32}\)
(b) \(\frac{1}{2} \log_{10} \frac{25}{4} - 2 \log_{10} \frac{4}{5} + \log_{10} \frac{320}{125}\).

Question 50:

• WAEC 2003

(a) Simplify : \(625^{\frac{3}{8}} \times 5^{\frac{1}{2}} \div 25\)
(b) Solve the following equations correct to one decimal place.
(i) \(\tan (\theta + 25)° = 5.145\)
(ii) \(5\cos \theta - 1 = 0\), where \(0° \leq \theta \leq 90°\).