Curriculum
- 8 Sections
- 110 Lessons
- 24 Weeks
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CDAC CCAT Study Materials
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- 2.1Alligation and Mixtures [Handmade Notes]
- 2.2Alligation and Mixtures [Formula]
- 2.3Alligation and Mixtures [Practice Problems]
- 2.4Chain rule [ Formula]
- 2.5Chain Rule [Handmade Notes]
- 2.6Chain Rule [Practice Problems]
- 2.7Ages [ Formula ]
- 2.8Ages Problem [Practice Problems]
- 2.9Ages Problem [Handmade Notes]
- 2.10Calendar Problem [Formula]
- 2.11Calendar Problem [Handmade Notes]
- 2.12Calendar Problem [Practice Problems]
- 2.13Boat and Stream [Formula]
- 2.14Boat and Stream [Handmade Notes]
- 2.15Boat and Stream [Practice Problems]
- 2.16Clocks [Formula]
- 2.17Clock Problem [Handmade Notes]
- 2.18Clock Problem [Practice Problems]
- 2.19HCF and LCM [Formula]
- 2.20HCM and LCM [Handmade Notes]
- 2.21HCM and LCM [Practice Problems]
- 2.22Number Series [Handmade Notes]
- 2.23Number Series [Practice Problems]
- 2.24Percentage Problem [Formula]
- 2.25Percentage Problem [Handmade Notes]
- 2.26Percentage Problem [Practice Problems]
- 2.27Permutation and Combination [Formula]
- 2.28Permutation and Combination [Handmade Notes]
- 2.29Permutation and Combination [Practice Problems]
- 2.30Pipes and Cistern [Handmade Notes]
- 2.31Pipes and Cistern [Practice Problems]
- 2.32Profit & Loss [Formula]
- 2.33Profit and Loss [Handmade Notes]
- 2.34Profit and Loss [Practice Problems]
- 2.35Simple Interest and compound [Formula]
- 2.36Simple and Compound Interest [Handmade Notes]
- 2.37Simple and Compound Interest [Practice Problems]
- 2.38Time and Work[Formula]
- 2.39Time and Work [Handmade Notes]
- 2.40Time and Work [Practice Problems]
- 2.41Train Problems [Formula]
- 2.42Train Problems [Handmade Notes]
- 2.43Train Problems [Practice Problems]
- 2.44Your Feedback Matters Alot to us ❤️2 Minutes
- Section A [ Verbal ]6
- 3.1Tenses [ Notes + Solved Examples + Practice Problem ]
- 3.2Synonyms And Antonyms [ Notes + Solved Examples + Practice Problem ]
- 3.3Sentence Completion [ Notes + Solved Examples + Practice Problem ]
- 3.4Reading Comprehension [ Notes + Solved Examples + Practice Problem ]
- 3.5Spotting Erorrs [ Notes + Solved Examples + Practice Problem ]
- 3.6Idioms And Phrases [ Notes + Solved Examples + Practice Problem ]
- Section A [ Logical Reasoning ]24
- 4.1Direction [ Formulas + Notes ]
- 4.2Direction [ Practice Problem ]
- 4.3Blood Relation [ Formulas + Notes ]
- 4.4Blood Relation [ Practice Problem ]
- 4.5Coding Decoding [ Formulas + Notes ]
- 4.6Coding Decoding [ Practice Problem]
- 4.7Odd One Out [ Formulas + Notes ]
- 4.8Odd One Out [ Practice Problem ]
- 4.9Syllogism [ Formulas + Notes ]
- 4.10Syllogism [ Practice Problem ]
- 4.11Seating Arrangement [ Formulas + Notes ]
- 4.12Seating Arrangement [ Practice Problem ]
- 4.13Data Sufficiency [ Formulas + Notes ]
- 4.14Data Sufficiency [ Practice Problem ]
- 4.15Mathematical Inequality [ Formulas + Notes ]
- 4.16Mathematical Inequality [ Practice Problem ]
- 4.17Statements & Courses of Actions [ Formulas + Notes ]
- 4.18Statements & Courses of Actions [ Practice Problem ]
- 4.19Statements & Assumptions [ Formulas + Notes ]
- 4.20Statements & Assumptions [ Practice Problem ]
- 4.21Logical Series [ Formulas + Notes ]
- 4.22Logical Series [ Practice Problem ]
- 4.23Clock [ Formulas + Notes ]
- 4.24Clock [ Practice Problem ]
- Aptitude Series to Crack Section A [ Free Sample Videos ]Note: CDAC CCAT Study Material Doesn't Contain videos we provide only Study Materials in this course , these videos are sample videos of our Aptitude Series16
- 5.1📌 Watch this Video to Crack your Section A [ Aptitude ]2 Minutes
- 5.2Train Problems Part #119 Minutes
- 5.3Train Problems Part #211 Minutes
- 5.4Train Problems Part #319 Minutes
- 5.5Train Problems [Handmade Notes]
- 5.6📌 Practice Problems [Quiz] – Train Problems
- 5.7Calendar Basics13 Minutes
- 5.8📌 Take the Complete Aptitude Series Now [ Videos Lectures – Quant , Verbal and Reasoning ] 📌
- 5.9Calendar Problem [Handmade Notes]
- 5.10📌 Practice Problems [Quiz] – Calendar
- 5.11Time and Work Part #118 Minutes
- 5.12Time and Work Part #213 Minutes
- 5.13Time and Work Part #313 Minutes
- 5.14Time and Work [Handmade Notes]
- 5.15📌 Practice Problems [Quiz] – Time and Work
- 5.16📌 Take the Complete Aptitude Series Now [ Videos Lectures – Quant , Verbal and Reasoning ] 📌
- Section B15
- 6.1C Programming
- 6.2C Programming Practice Problem
- 6.3Computer Network
- 6.4Computer Network Practice Problem
- 6.5Object Oriented Programming (C++) Sample
- 6.6Object Oriented Programming (C++)
- 6.7Object Oriented Programming (C++) Practice Problem
- 6.8Computer Fundamental
- 6.9Computer Fundamental Practice Problem
- 6.10Data Structures And Algorithms Sample
- 6.11Data Structures And Algorithms
- 6.12Data Structures And Algorithms Practice Problem
- 6.13Operating System Sample
- 6.14Operating System
- 6.15Operating System Practice Problem
- Previous Papers1
- Quiz4

TENSES
Tense can be defined as a word form used to indicate the time of occurrence of an
incident with reference to the moment of speaking. It indicates the completion or
continuance of an activity.
Types of Tenses
● Past
● present
● Future
These tenses can further be categorized into 4 types:
● Simple Tense
● Continuous Tense
● Perfect Tense
● Perfect Continuous Tense
Past Tense Rules
Past tense is used to describe a past activity or action. It is a form of the verb that defines the
events that have already occurred. Examples
● Reema attended the wedding functions.
● He left before I reached.
● Priya wrote a letter to her friends from camp.
Present Tense Rules
The present tense is used to describe the current or present being, situation, or event. It is a
form of the verb that defines the events that are currently happening. Examples
● I am going to the office
● She has been part of this group for 4 years now.
● The concert is amazing.

Future Tense Rules
The future tense is used to describe the future events that haven’t occurred but possibly will
occur in the future. It is a form of the verb that will occur in the future & not exist currently.
Examples
● She will be dancing to classical music.
● We will be shifting to the house upstate tomorrow morning.
● The train will leave in 10 minutes.
Tenses
Tenses Rule
Past simple tense
Subject + V2 + Object
Past Perfect tense
Subject + had + V3 + Object

Past Continuous tense
Subject + was + V1 + ing +
Object (Singular)
Subject + were + V1 + ing +
Object (Plural)
Past perfect continuous
Subject + had been + V1 +
tense
ing + Object
Present Simple tense
Subject + V1 + s/es + Object
(Singular) Subject +
V1 + Object (Plural)
Present Perfect tense
Subject + has + V3 + Object
(Singular) Subject +
have + V3 + Object
(Plural)
Present Continuous tense
Subject + is/am/are + V1 +
ing + object
Present perfect continuous
Subject + has been + V1 +
tense
ing + Object
(Singular)Subject +
have been + V1 + ing +
Object (Plural)
Future Simple tense
Subject + will/shall + V1 +
Object
Future Perfect tense
Subject + will have/shall
have + V3 + Object
Future Continuous tense
Subject + will be/shall be +
ing + V1 + Object
Future Perfect Continuous
Subject + will have been +
tense
V1 + ing + Object
V1 = first form of the verb
V2 = second form of the verb
V3 = third form of the verb

Solved Examples
1) Air pollution caused by industrial effluents has been studied (A)/ for years, but only
recently has (B)/ the harmful effects of noise pollution become known.(C)/No error(D)
Correct Answer: B
Explanation: use have instead of has as harmful effects of noise pollution is plural.
2) The ministry was considered several proposals (A)/ for the development of small
and medium enterprises (B)/during Budget discussions.(C)/No error (D)
Correct Answer: A
Explanation: Use simple past tense. (The ministry considered several proposals)
3) Having work(A)/ in both public and private sector banks(B)/she is the most suitable
person to take over the post of the chairman.(C)/No error(D)
Correct Answer: A
Explanation: Replace work by worked as the sentence is of past tense.
4) Rohit started a very small business two years ago (A)/ but it grew very fast (B)/as
the country is experiencing a boom at that time.(C)/No error(D)
Correct Answer: C
Explanation: The sentence is in the past tense, so use was experiencing.
5) Keeping in mind the current market conditions (A)/ it has better for us (B)/ to invest
in the infrastructure structure. (C)/No error(D)
Correct Answer: B

Explanation: Replace it has better for us with ‘it is better for us’. The sentence is in
the present tense.
Practice Problems
1) Our equipment gets (A)/ damage very often in summer (B)/ because there are too
many power cuts. (C)/No error (D)
Correct Answer: B
Explanation: Use damaged instead of damage as the sentence is in passive voice. The
third form of the verb is used in passive voice.
2) Most children liked to rest in the afternoon (A)/ after they returned from school
(B)/but my son seems to have an inexhaustible source of energy. (C)/No error (D)
Correct Answer: C
Explanation: replace seems by seemed as the sentence is in the past tense.
3) The cutting down on costs (A)/was the main reason for the firm to survive (B)/even
during a very difficult period. (C)/No error (D)
Correct Answer: D
Explanation: No error
4) I will go (A)/ for the dance classes tomorrow (B)/ if I have recovered from fever.
(C)/No error. (D)
Correct Answer: C
Explanation: If I have recovered is to be replaced by if I recover. Sentences of future
beginning with if should be in simple present.
5) The principal announced (A)/ in the school assembly that the school fees (B)/ will
be hiked from the beginning of the next academic session. (C)/No error(D)
Correct Answer: C
Explanation: Replace will with would. (The sentence is in indirect speech)

6) The terrorist did not (A)/ confessed his crime even till the very end (B)/of his trail
and said that he was innocent.(C) /No error (D)
Correct Answer: B
Explanation: Replace confessed with confess. (We use the first form of the verb with
did).
7) If the industrial sector continues to grow(A)/ at the same rate for the next few
months(B)/ I think it has a high growth rate this year.(C)/No error (D)
Correct Answer: C
Explanation: Replace I think it has with it will have as it is of the future tense.
8) Results find that girls (A)/ played not only more than boys(B)/ but also performed
better in many fields.(C)/No error (D)
Correct Answer: A
Explanation: Replace find with found as the sentence is of past tense.
9) Celebrating her fifteen long years in the film industry (A)/the actor announce that he
would be doing a new show (B)/on television which would be done completely free of
cost.(C)/No error (D)
Correct Answer: B
Explanation: Replace announce with announced as the sentence is of past tense.
10) Had I known (A)/ the weather forecast earlier (B)/I would not make plans to go
out. (C)/ No error (D)
Correct Answer: C
Explanation: replace ‘would not make’ with would not have made. (for imaginary
sentences of the past tense would have and the third form of the verb
is used). It’s a conditional sentence.

11) If you to talk to him on this sensitive matter(A)/ it is probable(B)/ that he will not
listen to you at all.(C)/ No error (D)
Correct Answer: D
Explanation: No error
12) On many occasions (A)/we did helped the poor (B)/ people by way of giving them
food to eat and clothes to put on. (C)/ No error (D)
Correct Answer: B
Explanation: Omit did
13) The farewell party continued (A)/till midnight as more and more(B)/ guests join in
the fun and frolic.(C)/ No error (D)
Correct Answer: C
Explanation: replace join with joined as the sentence is of past tense.
14) The market continues to be positive (A)/ and we expected the trend (B)/ to
continue in the next quarter also. (C)/No error (D)
Correct Answer: B
Explanation: Replace expect with expect as the latter part of the sentence is of future
tense.
15) Big zamindars in the villages(A)/ who were till now paid for electricity(B)/ at
subsidized rates will soon have to pay the government at full rates.(C)/ No error(D)
Correct Answer: B
Explanation: Replace paid with paying as the sentence is of past continuous tense.