ADDAX Job Aptitude test Past Questions

ADDAX Job Aptitude test Past Questions Study Pack will expose you to questions that appeared in the past, administered by dragnet.

It also provides expert advice that’ll help you perform your best, and get the needed edge over other candidates.

ADDAX Aptitude test format

Addax job test format (administered by Dragnet) includes:

• Numerical reasoning: Graphs, Charts, and Tables
• Verbal reasoning: Comprehension passages with true/false/cannot say options
• Abstract based questions: Diagrammatic reasoning

What you should know:

• The number of questions do change from year to year,
• Average time is 1-minute per question.
• Calculators are not allowed.
• Punctuality to the test center is very important

Sample Questions and Answers for ADDAX Job Aptitude test Past Questions Study pack

VERBAL REASONING

Although it was discovered in the 19th century that birds were closely related to
dinosaurs, the current scientific consensus is that birds were, and always have
been dinosaurs themselves. Fossil evidence demonstrates similarities between
birds and other feathered dinosaurs, including hollow bones, nest building, and
similar brooding behaviours. Although the dinosaurian lineage of birds is largely
undisputed, the evolution of powered flight in birds is still debated. Two theories of
flight in birds are the “ground-up” theory and the “trees-down” theory. Ground-up
theorists suggest birds evolved powered flight from ground-dwelling dinosaurs, and
trees-down theorists suggest birds evolved from tree-dwelling, gliding dinosaurs.
Further research is required to conclusively verify the process in which birds
evolved powered flight.

Q1 The “ground-up” and “trees-down” theories are the only theories explaining
flight in birds.
True

False

Cannot say

Cannot Say – Although the “ground-up” and “trees-down” theories are stated
to be theories of flight in birds, they are not stated to be the only two
theories explaining flight in birds. Therefore, the correct answer is “Cannot Say”.

Q2 All dinosaurs had hollow bones.
True

False Cannot say

Cannot Say – The passage states that other feathered dinosaurs also had hollow
bones, not that all dinosaurs (non-feathered) also had hollow bones. Therefore, the
correct answer is “Cannot Say”.

Q3 There is no scientific consensus regarding how birds evolved powered flight.
True

False

Cannot say

True – The passage states that further research is required to conclusively verify the
process in which birds evolved powered flight. Similarly, it is stated that the
evolution of powered flight in birds is still debated. Therefore, the correct answer is
“True”.

NUMERICAL REASONING

1. If y = 2x – sin2x, find dy/dx when x = π/4
A. π
B. -π
C. π/2
D. -π/2
Answer: D
Explanation
y = 2x cos2x – sin2x
dy/dx = 2 cos2x +(-2x sin2x) – 2 cos2x
= 2 cos2x – 2x sin2x – cos2x
= -2x sin2x
= -2 x (π/4) sin2 x (π/4)
= -(π/2) x 1 = -(π/2)

2. A bowl is designed by revolving completely the area enclosed by y = x2 – 1, y = 3 and x ≥ 0 around the axis. What is the volume of this bowl?
A. 7π cubic units
B. 15π/2 cubic units
C. 8π cubic units
D. 17π/2 cubic units
Answer: B
Explanation
∫30 π(y+1) dy = π[y2 + y30
= π(9/2 + 3) = 15π/2

3. If the volume of a hemisphere is increasing at a steady rate of 18π m3 s−1, at what rate is its radius changing when its is 6m?
A. 2.50m/s
B. 2.00 m/s
C. 0.25 m/s
D. 0.20 m/s
Answer: C
Explanation
V=23πr3
Given: dVdt=18πm3s−1
dVdt=dVdr×drdt
dVdr=2πr2
18π=2πr2×drdt
drdt=18π2πr2=9r2
The rate of change of the radius when r = 6m,
drdt=962=14
= 0.25ms−1

4. X and Y are two events. The probability of X or Y is 0.7 and that of X is 0.4. If X and Y are independent, find the probability of Y.
A. 0.30
B. 0.50
C. 0.57
D. 1.80
Answer: A
Explanation
P (X or Y) = P(X) + P(Y), when they are independent as given.
0.7 = 0.4 + P(Y)
P(Y) = 0.7 – 0.4 = 0.30

5. If the mean of the numbers 0, (x+2), (3x+6), and (4x+8) is 4, find their mean deviation.
A. 0
B. 2
C. 3
D. 4
Answer: C
Explanation
Mean = {0 + (x+2) + (3x+6) + (4x+8)}/4 = 4
=> 0 + (x+2) + (3x+6) + (4x+8) = 16
8x + 16 = 16
x = 0
Now prepare a table showing the deviation of each of 0, (x+2), (3x+6) and (4x+8), adding the deviations will give 12.
Thus M.D = 12/4 = 3

6. In how many ways can the word MATHEMATICS be arranged?
A. 11!/(9! 2!)
B. 11!/(9! 2! 2!)
C. 11!/(2! 2! 2!)
D. 11!/(2! 2!)
Answer:  C
Explanation
Number of letter in MATHEMATICS = 11
Number of letter M = 2
Number of letter T = 2
Number of letter A = 2
Arrangement = 11!/(2! 2! 2!) ways

7. Given that the various faces of a fair dice 1, 2, 3, 4, 5, 6 appeared 30, 43, 54, 40, 41, 32 times respectively in a single toss. Picture the figures as being represented in a simple table with number (X) against frequency (f).
If a pie chart is used to depict the data, the angle corresponding to 4 is?
A. 10°
B. 16°
C. 40°
D. 60°
Answer:  D
Explanation
Angle corresponding to 4 is 40/240 x 360/1 = 60°
Note that total angle in a circle is 360°.
Note also that sum of the frequencies given is 240.