Further Mathematics questions and answers

Further Mathematics Questions and Answers

Test your knowledge of advanced level mathematics with this aptitude test. This test comprises Further Maths questions and answers from past JAMB and WAEC examinations.

526.

If the points (-1, t -1), (t, t - 3) and (t - 6, 3) lie on the same straight line, find the values of t.

A.

t = -2 and 3

B.

t = 2 and -3

C.

t = 2 and 3

D.

t = -2 and -3

Correct answer is C

For collinear points (points on the same line), the slopes are equal for any 2 points on the line.

Given (-1, t - 1), (t, t - 3), (t - 6, 3), 

\(slope = \frac{(t-3) - (t-1)}{t - (-1)} = \frac{3 - (t-3)}{(t-6) - t} = \frac{3 - (t-1)}{(t-6) - (-1)}\)

Taking any two of the equations above, solve for t.

\(\frac{t - 3 - t + 1}{t + 1} = \frac{6 -t}{-6}\)

\(12 = (6 - t)(t + 1)\)

\(-t^{2} + 5t + 6 - 12 = 0 \implies t^{2} - 5t + 6 = 0\)

Solving, we have t = 2 and 3. 

527.

Find the variance of 1, 2, 0, -3, 5, -2, 4.

A.

\(\frac{52}{7}\)

B.

\(\frac{40}{7}\)

C.

\(\frac{32}{7}\)

D.

\(\frac{27}{7}\)

Correct answer is A

Mean, \(\bar{x} = \frac{1+2+0+(-3)+5+(-2)+4}{7} = \frac{7}{7} = 1\)

\(x\) \((x - \bar{x})\) \((x - \bar{x})^{2}\)
1 0 0
2 1 1
0 -1 1
-3 -4 16
5 4 16
-2 -3 9
4 3 9
Total (n) = 7  

52

Variance = \(\frac{\sum (x - \bar{x)^{2}}{n}\)

= \(\frac{52}{7}\)

528.

In how many ways can 9 people be seated on a bench if only 3 places are available?

A.

1200

B.

504

C.

320

D.

204

Correct answer is B

No explanation has been provided for this answer.

529.

A particle accelerates at 12\(ms^{-2}\) and travels a distance of 250m in 6 seconds. Find the initial velocity of the particle.

A.

5.7\(ms^{-1}\)

B.

6.0\(ms^{-1}\)

C.

60.0\(ms^{-1}\)

D.

77.5\(ms^{-1}\)

Correct answer is A

\(s = ut + \frac{1}{2}at^{2}\)

\(250 = 6u + \frac{1}{2}(12)(6^{2})\)

\(250 = 6u + 216 \implies 6u = 250 - 216 = 34\)

\(u = \frac{34}{6} \approxeq 5.7ms^{-1}\)

530.

For what values of m is \(9y^{2} + my + 4\) a perfect square?

A.

\(\pm {2}\)

B.

\(\pm {3}\)

C.

\(\pm {6}\)

D.

\(+12\)

Correct answer is D

No explanation has been provided for this answer.