This document provides 15 multiple choice critical reasoning questions and 16 mathematical problems questions that assess aptitude for computer science programs. The questions cover topics like percentages, probability, ratios, time/work problems, number series, coding/decoding, and logical reasoning. Sample questions include calculating patient survival rates based on treatment timelines, evaluating mathematical expressions with variables representing operations, and finding distances and directions from descriptions of paths traveled.

1. Some (OLD and asked) Aptitude questions for CCPP, CDAC
Critical Reasoning
1 If a patient doesn`t receive treatment for a certain injury within 2 hours after injury, the patient`s
chance of survival starts decreasing by 15% each hour. If no treatment has been given within 4 hours
after injury, roughly, what chance of survival will the patient have?
1. 77%
2. 70%
3. 75%
4. 72%
2 How many pairs of letters are there in the word `HORIZON’ which has as many letters between
them in the word as in the English alphabet?
1. One
2. Two
3. Three
4. More than three
3 If ‘a’ means ‘addition’, ‘d’ means ‘division’, ‘s’ means ‘subtraction’, and ‘m’ means ‘multiplication’,
what would be the value of the following?
1. 62
2. 20
3. 60
4. 25
4 If A means ‘-’, B means’/’, C means ’+’, D means ‘*’, what would be the value of "5A3D4C12B2"?
1. 14
2. 10
3. -1
4. None of these
5 288/ 24/ 0.12=?
1. 100
2. 12
3. 12.12
4. 1.44
6 Bindra started from a point X and walked straight 5 km east, then turned right and walked 2 km
straight. And again turned right and walked straight 7 km. In which direction is he from the starting
point?
1. North- East
2. South -West
3. South - East
4. North- South

2. Some (OLD and asked) Aptitude questions for CCPP, CDAC
7 If 7892 is coded as 1111011010100 then how is 749 coded?
1. 1001110011
2. 1011101101
3. 1001010101
4. 1110010010
8 9/4 + 51/8 =?
1. 8
2. 67/8
3. 69/8
4. 9
9 If PRATAP is coded as 157289458915 then how is TRAP coded?
1. 45729615
2. 45726195
3. 45726915
4. 45762915
10 Which choice below lists the letter that is as far after C as T is after O in the alphabet?
1. G
2. I
3. H
4. J
11 A salesman walks towards east a distance of 120 m to sell his product. Later he walks straight 70
m right to sell his product. What would be approximately the shortest distance between the two
places?
1. 138.9
2. 190
3. 50
4. None of these

3. Some (OLD and asked) Aptitude questions for CCPP, CDAC
12 Ram walked 18 km towards north, then turned left and having walked another 4 km, he turned
right and walked for 12 km more. How far has he walked from the starting point and in which
direction?
1. 8 km, North
2. 10 km, West
3. 16 km, South
4. 34 km, North
13 If RAJIYA is coded as YARAJI, How is SHIVANI CODED?
1. NISIHVA
2. NISHVIA
3. NISHIVA
4. NIHSIVA
14 Raman starts walking towards west. After walking 25 meters, he turns towards north. After
walking 30 meters, he turns towards east and walks 25 meters. How far is he from his original
position and in which direction?
1. 25 meters North
2. 30 meters North
3. 25 meters South
4. 30 meters South
15 Which is the missing number in the series 7, 12, 22, 37, … 82, 112?
1. 50
2. 57
3. 58
4. 116

4. Some (OLD and asked) Aptitude questions for CCPP, CDAC
16 In the word `PARADISE`, how many pairs of letters are there which have as many letters between
them in the word as in the alphabet?
1. None
2. One
3. Two
4. Three
17 Which number is missing in the series 840, 168, 42,….,7, 7?
1. 12
2. 16
3. 14
4. 15

5. Some (OLD and asked) Aptitude questions for CCPP, CDAC
Mathematical Problems
18 Bhavana began a business with Rs. 2100 and is joined afterwards by Y with Rs. 3600.After how
many months did Y join, if the profits at the end of the year are equally divided
1. 3 months
2. 4 months
3. 6 months
4. 5 months
19 What will be the quotient of a and b if c is the product of a and b?
1. square of b/c
2. c / square of b
3. b / square of c
4. square of c /b
20 How many words can be formed from the letters of the word DOGMATIC, If all the vowels
remains together?
1. 4140
2. 4320
3. 432
4. 414
21 What will be the maximum number of points of intersection of 20 straight lines?
1. 190
2. 220
3. 200
4. None of these
22 Prakash invested a certain sum of money in a simple interest bond whose value grew to Rs.300 at
the end of 3 years and to Rs. 400 at the end of another 5 years. What was the rate of interest in
which he invested his sum?
1. 12%
2. 8.33%
3. 6.67%
4. 6.25%

6. Some (OLD and asked) Aptitude questions for CCPP, CDAC
23 A shopkeeper sold an article for Rs.6750 after given a discount of 10% on the labelled price. He
would have earned a profit of 50% had there been no discount. What was the actual percentage of
profit earned?
1. 36%
2. 40%
3. 35%
4. 42%
24 Two dice are tossed. What is the probability that the total score is a prime number?
1. 1/6
2. 5/12
3. 1/2
4. 7/9
25 What will be the L.C.M, if the product of two numbers is 84942 and their H.C.F. is 33?
1. 2578
2. 2476
3. 2572
4. 2574
26 A certain number of men can finish a piece of work in 10 days. If however there were 10 men less
it will take 10 days more for the work to be finished. How many men were there originally?
1. 100
2. 120
3. 110
4. 115
27 How many number of solution does the equation
log to the base 2( square of (x)-1)=log to the base ½[(x-1)]=4 have?
1. 0
2. 1
3. 3
4. 2

7. Some (OLD and asked) Aptitude questions for CCPP, CDAC
28 A man buys an article at ¾ th of its value and sells it for 20% more than its value. What will be his
profit percent based on the cost?
1. 60%
2. 50%
3. 45%
4. 75%
29 What is the value of ‘b’ in the expression, 0.5625+b=350% of 50?
1. 146.25
2. 174.43
3. 176.25
4. 167.25
30 The compound interest on a certain sum for 2 years at 3% per annum is Rs.101.50. What will be
the simple interest on the same sum at the same rate and for the same time?
1. Rs. 100.00
2. Rs. 95.50
3. Rs. 90.00
4. Rs. 98.25
31 A bag contains 3 red, 5 yellow, and 4 green balls. Three balls are drawn randomly. What is the
probability that the balls drawn contain exactly two green balls?
1. 3/11
2. 12/55
3. 7/44
4. None of the above