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.
In how many ways can the letters of the word ACCEPTANCE be arranged?
10! / (2!2!3!)
10! / ( 2!3!)
10! / (2!2!)
10!
Correct answer is A
ACCEPTANCE = 10 Letters
A = 2 letters
C = 3 letters
E = 2 letters
Can be arranged in 10! / (2!3!2!) ways
Find the mean deviation of 2, 4, 5, and 9
1
2
5
7
Correct answer is B
No explanation has been provided for this answer.
If x > 0, find the range of number x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x and 3x+1
3x+3
3x+1
2x+5
2x+1
Correct answer is A
x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x, 3x+1
Range = 4x - (x-3)
= 3x + 3
Find the median of 4, 1, 4, 1, 0, 4, 4, 2 and 0
zero
1
2
4
Correct answer is C
4, 4, 1, 0, 4, 4, 2, 0
Arrange in ascending order:
0, 0, 1, 1, 2, 4, 4, 4, 4
Position of median = N+1 / 2 = 9+1 / 2 = 5th
Median = 2
What is the mean of the data t, 2t-1, t-2, 2t -1, 4t and 2t+2?
2t
2t-1
2/3t+1
2t-1/3
Correct answer is D
\(Mean = \frac{t+2t-1+t-2+2t-1+4t+2t+2}{6}\\
Mean = \frac{12t-2}{6}\\
=\frac{2(6t-1)}{6}\\
=\frac{6t-1}{3}\\
=\frac{6t}{3}- \frac{1}{3}\\
=2t-\frac{1}{3}\)