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.
The population of a village is 5846. Express this number to three significant figures
5850
5846
5840
585
584
Correct answer is A
5846 \(\approxeq\) 5850 (to 3 s.f.)
Express 0.0462 in standard form
0.462 x 10-1
0.462 x 10-2
4.62 x 10-1
4.62 x 10-2
4.62 x 103
Correct answer is D
4.62 x 10-2
Two groups of male students cast their vote on a particular proposal. The results are as follows:
| In favor | Against | |
| Group A | 128 | 32 |
| Group B | 96 | 48 |
If a student is chosen at random, what is probability that he is against the proposal?
3/19
4/19
5/19
9/19
10/19
Correct answer is C
Probability that the student is against the proposal
= \(\frac{32 + 48}{128 + 32 + 96 + 48}\)
= \(\frac{80}{304}\)
= \(\frac{5}{19}\)
Two groups of male students cast their votes on a particular proposal. The result are as follows:
| In favor | Against | |
| Group A | 128 | 32 |
| Group B | 96 | 48 |
If a student in favor of the proposal is selected for a post, what is the probability that he is from group A?
8/19
16/35
10/19
4/7
4/5
Correct answer is A
Probability that a student in favor is group A
= \(\frac{128}{128 + 32 + 96 + 48}\)
= \(\frac{128}{304}\)
= \(\frac{8}{19}\)
N3.00
N9.00
N12.00
N15.00
N18.00
Correct answer is C
No explanation has been provided for this answer.