Mathematics 2015 Waec Past Questions and Answers

Question 26 :

• WAEC 2015

\(\begin{array}{c|c}
Scores & 0 - 4 & 5 - 9 & 10 - 14\\
\hline Frequency & 2 & 1 & 2\end{array}\)
The table shows the distribution of the scores of some students in a test. Calculate the mean scores.

A. 5.6
B. 6.2
C. 6.6
D. 7.0

Question 27 :

• WAEC 2015

The probability that kebba, Ebou and Omar will hit a target are \(\frac{2}{3}\), \(\frac{3}{4}\) and \(\frac{4}{5}\) respectively. Find the probability that only Kebba will hit the target.

A. \(\frac{2}{5}\)
B. \(\frac{7}{60}\)
C. \(\frac{1}{30}\)
D. \(\frac{1}{60}\)

Question 28 :

• WAEC 2015

In the diagram, VW//YZ, |WX| = 6cm, |XY| = 16cm, |YZ| = 20cm and |ZX| = 12cm. Calculate |VX|

A. 3cm
B. 4cm
C. 6cm
D. 8cm

Question 29 :

• WAEC 2015

Tom will be 25 years old in n years' time. If he is 5 years younger than Bade's present age.

A. (30 - n)years
B. (20 - n)years
C. (25 - n)years
D. (30 + n)years

Question 30 :

• WAEC 2015

If \(\frac{\sqrt{2} + \sqrt{3}}{\sqrt{3}}\) is simplified as m + n\(\sqrt{6}\), find the value of (m + n)

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