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.
N1,080.00
N2,400.00
N3,000.00
N3,600.00
Correct answer is B
Let value of store = X
Ratio of Taiwo's share to kehine's is 11:9 Keyinde sells \(\frac{2}{3}\) of her share to Taiwo for N720
\(\frac{2}{3}\) of 9 = 6
∴ Sum of the ratio = 11 + 9 = 20
\{\frac{6}{20}\) of x = N720
\(\frac{6x}{20}\) = 720
∴ x = \(\frac{720 \times 20}{6}\)
x = N24,000
A 5.0g of salt was weighted by Tunde as 5.1g. What is the percentage error?
20
2
1.1
0.2
Correct answer is B
% error = \(\frac{\text{actual error}}{\text{true value}}\) x 100
Where actual error = 5.1 - 5.0 = 0.1
true value = 5.0g
% error = \(\frac{0.1}{5.0}\) x 100
= \(\frac{10}{5}\)
= 2%
Simplify \(\frac{1\frac{1}{2}}{2 \div \frac{1}{4} \text{of } 32}\)
\(\frac{3}{256}\)
\(\frac{3}{32}\)
6
85
Correct answer is C
\(\frac{1\frac{1}{2}}{2 \div \frac{1}{4} \text{ of }32}\)
= \(\frac{\frac{3}{2}}{2 \div \frac{1}{4} \times 32}\)
\(\frac{3}{2} \times 4 = 6\)
For which of the following exterior angles is a regular polygon possible? i. 35° ii. 18° iii. 15°
i and ii
ii only
ii and iii
iii only
Correct answer is C
for a regular polygon to be possible, it must have all sides angles equal. \(\frac{360}{18}\) = 20 sides and \(\frac{360}{15}\) = 24 sides
(ii) and (iii) are right
110o
120o
130o
140o
Correct answer is D
Let the fifth interior angle be y: sum of interior angle of a pentagon
= (2 x 5 - 4) x 90o
= 6 x 90o
= 540o
(90 - x) + (90 + x) + (110 - 2x) + (110 + 2x) + y = 540o
400o + y = 540o
y = 540 - 400o
y = 140o