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.
Simplify: \(\frac{\log \sqrt{27}}{\log {81}}\)
1/6
3/8
1/2
3/4
6
Correct answer is B
\(\frac{\log \sqrt{27}}{\log 81}\)
= \(\frac{\log \sqrt{3^3}}{\log 3^4}\)
= \(\frac{\log 3^{\frac{3}{2}}}{\log 3^4}\)
= \(\frac{\frac{3}{2} \log 3}{4 \log 3}\)
= \(\frac{\frac{3}{2}}{4}\)
= \(\frac{3}{8}\)
Simplify: \(\frac{4^{-\frac{1}{2}} \times 16^{\frac{3}{4}}}{4^{\frac{1}{2}}}\)
1/4
0
1
2
4
Correct answer is D
\(\frac{4^{-\frac{1}{2}} \times 16^{\frac{3}{4}}}{4^{\frac{1}{2}}}\)
= \(\frac{16^{\frac{3}{4}}}{4^{\frac{1}{2}} \times 4^{\frac{1}{2}}}\)
= \(\frac{(2^4)^{\frac{3}{4}}}{4^{\frac{1}{2}} \times 4^{\frac{1}{2}}}\)
= \(\frac{2^3}{4}\)
-2
1
2
6
12
Correct answer is A
when n = 2
(-1)\(^{n-2}\) 2\(^{n+1}\) = 2
When n = 3
(-1)\(^{n-2}\) 2\(^{n+1}\) = -4
Sum = 2 - 4 = -2
A stick of length 1.75m was measured by a boy as 1.80m. Find the percentage error in his measurement
27/9%
26/7%
5%
277/9%
284/7%.
Correct answer is B
Convert 89\(_{10}\) to a number in base two.
1101001
1011001
1001101
101101
11001
Correct answer is B
\(89_{10}\)
| 2 | 89 |
| 2 | 44 r 1 |
| 2 | 22 r 0 |
| 2 | 11 r 0 |
| 2 | 5 r 1 |
| 2 | 2 r 1 |
| 2 | 1 r 0 |
| 0 r 1 |
\(89_{10} = 1011001_{2}\)