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.
If 6Pr = 6, find the value of 6Pr+1
30
33
35
15
Correct answer is A
6Pr = 6 Thus r = 1
N.B 6P1 = \(\frac{\text{6!}}{\text{(6 - 1)!}}\)
= \(\frac{\text{6!}}{\text{5!}}\)
= \(\frac{6 \times \text{5!}}{\text{5!}}\) = 6
6Pr + 1 = 6P2 = \(\frac{\text{6!}}{(6 - 2)\text{!}} = \frac{6\text{!}}{\text{4!}}\)
= \(\frac{6 \times 5 \times \text{4!}}{\text{4!}}\)
= 30
2/3
1/2
1/3
1/4
Correct answer is D
P (games end in draw)
=> Team P wins and Q wins
P(P wins) = 1/2
P(Q wins) = 1/2
Therefore P (games ends in draw) = 1/2 x 1/2 = 1/4
7.0
8.7
9.5
11.0
Correct answer is B
Mean = ∑fx/∑f
Mean = (4x3) + (7x5) + ... + (8x1) all divided by 20
Mean = 174/20 = 8.7
49
121
25
64
Correct answer is B
Mode = score with highest frequency = 11.
Square of 11 = 121
Find the dimensions of a rectangle of greatest area which has a fixed perimeter p.
square of sides p
square of sides 2p
square of sides (p/2)
square of sides (p/4)
Correct answer is D
Let the rectangle be a square of sides p/4.
So that perimeter of square = 4p
4 x (p/4) = p.