Cocubes is one of the leading assessment tests used by companies to evaluate candidates’ aptitude, logical reasoning, and problem-solving skills. Before you start practicing, it’s essential to understand the registration process and updated Cocubes syllabus.
Section | Topics Covered | Difficulty Level |
---|---|---|
Quantitative Aptitude | Arithmetic, Algebra, Geometry, Number Systems | Moderate to High |
Logical Reasoning | Puzzles, Seating Arrangement, Blood Relations | Moderate |
Verbal Ability | Reading Comprehension, Grammar, Synonyms/Antonyms | Easy to Moderate |
Data Interpretation | Graphs, Charts, Tables | Moderate |
Question: A and B are two alloys in which the ratios of gold and copper are 5:3 and 5:11 respectively. If equal amounts of both alloys are melted together to form alloy C, what will be the ratio of gold to copper in alloy C?
a) 20:21
b) 21:20
c) 15:17
d) 17:16
Answer: (c) 15:16
Explanation: Using the concept of weighted averages, we derive that the new ratio in alloy C is 15:16.
Question: A, B, and C together can complete a piece of work in 20 days. B takes twice the time A and C take together, and C takes twice the time A and B take together. In how many days can B alone complete the work?
a) 40
b) 35
c) 60
d) 45
Answer: (c) 60 days
Explanation: Using the work efficiency formula, B’s individual efficiency is derived as 1/60.
Question: A shopkeeper offers a 20% discount on the marked price of an article and charges a 10% sales tax on the discounted price. If the selling price is Rs. 1848, what is the marked price?
a) 2500
b) 3200
c) 3600
d) 2100
Answer: (d) 2100
Explanation: Using the formula: MP * (80/100) * (110/100) = SP, we solve for MP.
Question: Three pipes, A, B, and C, are attached to a container. A and B can fill it in 20 and 30 mins respectively, while C can empty it in 45 mins. If they operate alternately for one minute each (A first, then B, then C), how long will it take to fill the container?
a) 25 min
b) 35 min
c) 20 min
d) 47 min
Answer: (d) 47 min
Explanation: After analyzing the fill-empty cycle, we determine that the container gets filled in 47 minutes.
Question:
The present age of a father is 4 times the age of his son. After 10 years, the father’s age will be 3 times the age of his son. What is the present age of the son?
Answer:
Let the present age of the son be x years.
Father’s present age = 4x.
After 10 years, the father’s age will be 4x + 10 and the son’s age will be x + 10.
According to the given condition:
4x + 10 = 3(x + 10)
Solving:
4x + 10 = 3x + 30
x = 20.
Thus, the present age of the son is 20 years.
Pointing to a man, a woman says, “His mother is the only daughter of my mother.” How is the woman related to the man?
A) Sister
B) Mother
C) Aunt
D) Grandmother
Answer: B) Mother
Explanation:
A person walks 10 meters north, then 10 meters east, then 10 meters south, and finally 10 meters west. Where is he from the starting point?
A) 10 meters east
B) Back to the starting point
C) 10 meters north
D) 10 meters west
Answer: B) Back to the starting point
Explanation: The east and west movements cancel each other, and the north and south movements also cancel each other.
If in a certain language, “HELLO” is written as “IFMMP”, how is “WORLD” written?
A) XPSME
B) VNSKC
C) XPQME
D) XPTME
Answer: A) XPSME
Explanation:
Each letter is shifted one step forward in the alphabet:
H → I, E → F, L → M, L → M, O → P
Similarly, WORLD → XPSME
Find the odd one out:
A) 36
B) 64
C) 81
D) 100
Answer: C) 81
Explanation:
All numbers are perfect squares, but:
Identify the correct sentence:
A) He did not wrote the exam.
B) He did not write the exam.
C) He did not writing the exam.
D) He did not writes the exam.
Answer: B) He did not write the exam.
Explanation:
After “did”, we always use the base form of the verb (write).
Statements:
Conclusions:
I. Some cats are rats.
II. Some dogs are cats.
A) Only I follows
B) Only II follows
C) Both follow
D) Neither follows
Answer: B) Only II follows
Explanation:
Sample Aptitude Questions
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