How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
N40,500
N45,000
N52,500
N62,000
Correct answer is B
Let;
M = Man monthly net earnings
Then;
\(\text{N4500} = \frac{\text{10%}}{\text{100%}} \times M \)
\(M = \frac{\text{N4500} \times \text{100%}}{\text{10%}} \)
M = N45,000
Express the product of 0.00043 and 2000 in standard form.
8.6 x 10-3
8.3 x 10-2
8.6 x 10-1
8.6 x 10
Correct answer is C
0.00043 x 2000
= 43 x 10-5 x 2 x 103
= 43 x 2 x 10-5+3
= 86 x 10-2
= 8.6 x 101 x 10-2
= 8.6 x 10-1
A woman bought a grinder for N60,000. She sold it at a loss of 15%. How much did she sell it?
N53,000
N52,000
N51,000
N50,000
Correct answer is C
SP = Nx
CP = N60,000
Percentage loss = 15%
Using percentage loss...
\(\frac{CP - SP}{CP} = \text{100%}\)
\(\text{15%} = \frac{60000 - x}{60000} \times \text{100%}\)
\(\text{15%} \times 60000 = (60000 - x)\text{100%}\)
\(60000 - x = \frac{\text{15%} \times 60000}{\text{100%}}\)
60000 - x = 3 x 3000
60000 -x = 9000
x = 60000 - 9000
x = N51,000
Find the value of 1101112 + 101002
11010112
10010012
10010112
10011112
Correct answer is C
No explanation has been provided for this answer.
IN the diagram, |LN| = 4cm, LNM = 90o and tan y = 2/3. What is the area of the ∆LMN?
24cm2
12cm2
10cm2
6cm2
Correct answer is B
\(tan \hspace{1mm}y = \frac{opp}{adj}=\frac{2}{3}\Rightarrow \frac{2}{3}=\frac{
LN}{MN}=\frac{4}{MN}\\
∴ MN = \frac{12}{2}=6\\
Area \hspace{1mm}of \hspace{1mm}\Delta LMN = \frac{1}{2}\times MN\times LN=\frac{1}{2}\times 6\times 4=12cm\)