Computer Programming Aptitude Test

 

Aptitude tests for computing jobs broadly fall into three groups:

  1. A standard battery of tests assessing competencies such as numerical reasoning, logical reasoning and non-verbal reasoning which are required in technical computing jobs.
  2. A hybrid test comprising of elements involving logical reasoning, numerical problem solving, pattern recognition, ability to follow complex procedures and attention to detail. Neither of these first two types of test require any knowledge of programming
  3. A programming simulation involving pseudocode, control structures (e.g. loops), look-up tables, sets, arrays, boolean true/false, looping and other programming structures. These are given to experienced programmers to assess their competence.

The test given here is a hybrid test (type 2 above). Hybrid tests involve:

Other attributes required by programmers and other computing professionals

The test has 26 questions and you will have 40 minutes to do them. At the end of the test (when 40 minutes have elapsed), you will be given a score. Please use SCRAP PAPER and a CALCULATOR for working out answers. Please note that this is quite a demanding test.

The test will start with three easy example questions which will not be marked or timed. Now click on the "Go to First Example" button below to begin. Click on the radio button next to your answer to answer it. You can change your answer by clicking on another button.You can also go back to the previous question, by clicking on the previous question button. If you are certain you have finished the test you can click on "Get Your Score".

As mentioned before, this test is for practice only, so you should not regard your result as of importance chiefly because the test was not taken under proper test conditions e.g. in a silent room with no disturbances. Your performance can also be distorted if you have a cold, or have not slept well. Also, evidence shows that international students or those from ethnic minorities may be disadvantaged in this type of test, due to language and cultural differences. If your first language is not English, your score is likely to be lower on such tests than native English speakers. Mature students may also sometimes be disadvantaged and you should remember that your degree subject may change your performance - for example scientists are likely to do better on mathematical tests and Humanities students on verbal tests. Even your ability to use a mouse may influence your score! Having said all this it is still natural for you to want some feedback on your performance.

Score

For more information about programming tests click on the programming tests tab on our psychometric tests page

Answers

Question
Answers

Example answers plus working

1 4

Grace thought of a number, added 7, multiplied by 3, took away 5 and divided by 4 to give an answer of 7. What was the starting number?
You need to work backwards: multiply 7 by 4, add 5, divide by 3, take away 7 to reach the starting number.
4 + 7 = 11 x 3 = 33 - 5 = 28 / 4 = 7

2 10

spreadsheet
What is B1 + C2?
B1 = 7 and C2 = 3, therefore B1 + C2 = 10

3 None of these

Multiply A1 by B2. Put the answer in E1.
Now divide E1 by D4.
What is the answer?
A1 = 9, B2 = 2, therefore E1 = 9 x 2 = 18
D4 = 3. 18 divided by 3 = 6.
6 is not one of the answers listed, so you must answer "None of these"

Question
Answers

Test answers plus working

1 2 Above are 6 rows containing two identical sets of characters, but in one row, one character in the two sets is different. Which row has the difference?
2) iqtgiwegasdio iqtgiyegasdio These first three questions involve basic syntax checking.
2 5 Above are 6 rows containing two identical sets of characters, but in one row, one character in the two sets is different. Which row has the difference?
5) dsNvn(Pos\o;l\md;) dsNvn(Pos\e;l\md;)
3 6 Above are 6 rows containing two identical sets of characters, but in one row, one character in the two sets is different. Which row has the difference?
6) ladnl:vdlne,842tybqi\m ladnl:avdlne;842tybqi\m
4 3 Alan thinks of a number. He squares it, then takes away 5, next multiplies it by 4, takes away 7, divides it by 3 and finally adds 6. His answer is 9.
What number did he start with?
Working backwards from the answer.
9 - 6 = 3 x 3 = 9 +7 = 16 /4 = 4 + 5 = 9. Square root of 9 = 3
5 150 If the hour hand of a clock is turned anticlockwise from 2 pm to 9 am, through how many degrees will it have turned?
The clock hand moves through 5 hours. Each hour division subtends 30 degrees (360 / 12). Therefore the hand will have turned 5 x 30 degrees = 150 degrees in total.
6 63%

triangles

What percentage of this shape is blue (to nearest percent)?
There are 80 triangles altogether. 50 of which are blue, therefore 50/80 x 100 = 62.5% This rounds up to 63%

7 6

If ADD = 9, BAD = 7 and CAD = 8 what is the value of ADA?
Each letter here has the same value as its place in the alphabet. So A = 1, B = 2 etc.
A = 1 D = 4 and A = 1 so ADA = 1 + 4 + 1 = 6

8 40

If BAD = 10, DAC = 11, and CGI = 22 what is the value of OCCAM?
Each letter has the same value as its place in the alphabet plus 1. So A = 2, B = 3 etc.
O = 16 (15th letter of the alphabet) and M = 14 (13th letter)
So OCCAM = 16 + 4 + 4 + 2 + 14 = 40

9 40 If DATA = 52, CACHE = 40 and BIT = 62. What is the value of BABBAGE?
Here each letter has double the value of its place in the alphabet. So A = 2, B= 4 and so forth.
So BABBAGE = 4 + 2 + 4 + 4 + 2 + 14 + 10 = 40
10 NW

You are facing North. Turn 90 degrees left = W
Turn 180 degrees right = E Reverse direction = W again
Turn 45 degrees left = SW Reverse direction = NE Turn 270 degrees right. = NW
In which direction are you now facing?
N W E W SW NE NW

11 bykR Flight tickets for an airline are coded as follows:
UK Destinations are coded A, Flights to Europe are coded B, Asian Destinations C, and the Americas D.
If a flight takes place between 10 pm and 6 am the same code are used but with lower case letters (a,b,c, and d)
Male passengers are coded X and female passengers are coded Y. Children are coded by the same letters in lower case (x.y)
Meals are coded as follows:
European meal G, Asian Meal H, Vegetarian Meal K. Children's meals coded by the same letters in lower case (g,h,k)
First Class passengers are coded P, Business Class Q and economy R
What would the code be for a flight to Paris at 5am for a vegetarian 8 year old girl travelling economy class?
European Flight before 6 am = b. Female child = y, Vegetarian children's meal = k, Economy class= R
Therefore code is bykR
12 D,HP,V

Three computers were lined up in a row. The Dell was to the left of the Viglen but not necessarily next to it. The blue computer was to the right of the white computer. The black computer was to the left of the Hewlett Packard PC. The Hewlett Packard was to the left of the Viglen.
What was the order of the computers?

Computer Dell Hewlett Packard Viglen
Operating System Black White Blue
13 27

Tim was given a large bag of sweets and ate one third of the sweets before stopping as he was feeling sick. The next day he ate one third of the remaining sweets and the following day he ate one third of the remainder, before counting the sweets he had left which totaled eight. How many sweets was he given in the beginning?
2/3 x 2/3 x 2/3 = 8/27

14 21 In a counting system used by intelligent apes.
A banana = 1
6 is represented by an orange and 2 bananas
An orange is worth half a mango
What is the value of two mangos, an orange and a banana?
Banana = 1 orange = 4 mango = 8
8 + 8 + 4 + 1 = 21
15 Orange What is two mangos and an orange, divided by an orange with a banana?
An orange
(8 + 8 + 4) / (4 + 1) = 4 = orange
16 DCUKE

If the code for JAVA is LCXC what is the code for BASIC?
Each letter in JAVA is moved forward in the alphabet by two letters:
J + 2 = L , A + 2 = C , V + 2 = X, A + 2 C
Moving each letter in BASIC forward by two we get DCUKE

17 None of these

If the code for FORTRAN is GMUPWUU  what is the code for PASCAL?
Here the sequence is more complex: +1, -2, +3, -4, +5, -6
F + 1 = G, O - 2 = M, R +3 = U, T - 4 = P, R + 5 = W, A - 6 = U, N + 7 = U
Applying the same process to PASCAL we get QYVYFF, which is not one of the listed solutions, so the answer is none of these. 

18 TUU If the code for PHP is QLY. What is the code for SQL ?
Here the change is +1, +4, +9 (square numbers)
So applying the same process to SQL we get TUU 
19 7

squares

You start in square E6 facing East. Move 3 squares forward = H6
Turn 90 degrees clockwise, move two squares forward = H4.
Turn 180 degrees anticlockwise. Move 5 squares forward = H9.
Turn 90 degrees anticlockwise. Move 4 squares forwards = D9.
Turn 90 degrees clockwise. Move two squares backwards = D7
What is the Y COORDINATE of the square you are now in?
7

20 H

You start in square E6 facing South West. Move three squares forward = B3 Facing SW
Rotate 135 degrees clockwise. Move 4 squares forward. = B7 Facing N
Rotate 45 degrees clockwise. Move 2 squares forward = D9 Facing NE
Rotate 90 degrees anticlockwise and move 4 squares backwards. H5 Facing NW
What is the X Coordinate of the square you are now in? H
C D E F G H

21 135 What is the angle between the hands of a clock at 10.30?
The minute hand will be at 6 o'clock = 180 degrees
The hour hand will be half way between 10 and 11 o'clock.
Each hour subtends 30 degrees so the hour hand will be at 30 x 10.5 degrees
= 315 degrees.
So the difference between the two hands is 315 - 180 = 135 degrees.
22 58% In a chocolate factory, a machine takes a 1 kg block of chocolate. It then divides this into rectangles each weighing 10g. These rectangles are then stamped into disks of chocolate each weighing 6g with the remaining chocolate discarded. These chocolate disks are then packed into bags of 4 which are sealed and finally packed into boxes, each containing 6 bags ready for dispatch to the shops. What weight of chocolate out of the original kilogram will be contained in COMPLETELY FILLED boxes (i.e. those containing a full 6 bags)?

1000 g of chocolate is made into 100 rectangles of chocolate each weighting 10g.
These are then stamped into 100 disks of 6g each.
4 disks are packed into each bag and then 6 bags are placed into each box.
Therefore there are 24 disks in each box.
As there are 100 disks in total produced from the 1 Kg of chocolate, there will therefore be four boxes with 4 disks left over.
These 4 boxes contain 96 disks each weighing 6g.
So the total weight of chocolate in the boxes will be 96 x 6g = 576g. 
Converting to a percentage: 576/1000 X 100 = 57.6% which rounds to 58%
23 26

spreadsheet

What is A4 multiplied by D3 divided by C2?
A4 = 13, D3 = 6, C2 = 3. 13 x 6 = 78 ÷ 3 = 26

24 None of these

Store the answer to B4 plus A2 in F1. Store the answer to A4 minus D2 in F3. Multiply F1 by F3. What is the final answer?

Store the answer to B4 plus A2 in F1.
B4 + A2 = 9 + 8 = 17 = F1
Store the answer to A4 minus D2 in F3.
13 - 7 = 6 = F3
Multiply F1 by F3.
17 x 6 = 102. None of the given solutions is 102, so the answer is "None of these"

25 405 STEP 1: Multiply C3 by D4 and store the result in F4
STEP 2: Multiply F4 by 3 then add 1 to E3.
STEP 3: Repeat STEP 2 until the value of E3 equals 3 then stop.
What is the value of F4?

STEP 1: 5 x 3 = 15 = F4
STEP 2: 15 x 3 = F4 = 45 & E3 = 1.
STEP 3: 45 x 3 = 135 & E3 = 2.
135 x 3 = 405 & E3 = 3.
STOP.
F4 now equals 405
26 83

Add A1 + B3 + C4 + D2 and put the result in E2. Add A3 + B1 + C2 + D4 and place the result in E4. If the value of E4 is larger than E2 swop their contents, otherwise leave them as they are. Multiply E2 by D1, then take away A4 and place the result in F2. What is the value of F2?

Add A1 + B3 + C4 + D2 and put the result in E2. 9 + 1 + 6 + 7 = 23 = E2
Add A3 + B1 + C2 + D4 and place the result in E4. 11 + 7 + 3 + 3 = 24 = E4
If the value of E4 is larger than E2 swop their contents, otherwise leave them as they are.
E4 = 24 whereas E2 = 23 therefore they should be swopped, so E2 now = 24 and E4 = 23
Multiply E2 by D1 then take away A4 24 x 4 = 96 - 13 = 83.
What is the value of F2? 83


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