CAT Questions

Q:

If x = 2 + 223 + 213 then find the value of x3-6x2+6x ?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:

Given that x = 2+ 223 + 213

 

So x - 2 = 223 + 213

 

Now cubing on both sides, we get

 

 

=> x3-8-6x2+12x = 4 + 2 + 6(x-2)

 

Therefore, x3-6x2+6x = -6 + 8 = 2

 

 

Report Error

View Answer Report Error Discuss

Filed Under: Square Roots and Cube Roots
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

11 3189
Q:

Which nitrogenous base is not found in dna?

A) Uracil B) Thymine
C) Cytosine D) Guanine
 
Answer & Explanation Answer: A) Uracil

Explanation:

A nitrogenous base, or nitrogen-containing base, is an organic molecule with a nitrogen atom that has the chemical properties of a base. The main biological function of a nitrogenous base is to bond nucleic acids together. A nitrogenous base owes its basic properties to the lone pair of electrons of a nitrogen atom.

 

In DNA, four bases have been found. They are

1. Adenine (A),

2. Guanine (G),

3. Cytosine (C) and

4. Thymine (T).

 

The first three of these bases are found in RNA also but the fourth which is Uracil (U) is absent in it.

RNA contains cytosine and uracil as pyrimidine bases while DNA has cytosine and thymine.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

4 3189
Q:

Expedite is the opposite of

A) halt B) quicken
C) rush D) hasten
 
Answer & Explanation Answer: A) halt

Explanation:

Expedite means making an action fast or sooner i.e, to accomplish a work as quickly as possible.

 

Hence, halt means stop and it is opposite of Expedite.

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

2 3189
Q:

Which sentence is written correctly?

A) Ms. Praveena showed us a documentary in class today because the film, "focuses on a similar subject" to a book we are going to read. B) Ms. Praveena showed us a documentary in class today because the film "focuses on a similar subject" to a book we are going to read.
C) Ms. Praveena showed us a documentary in class today because the film, "Focuses on a similar subject" to a book we are going to read. D) Ms. Praveena showed us a documentary in class today because the film "Focuses on a similar subject" to a book we are going to read.
 
Answer & Explanation Answer: A) Ms. Praveena showed us a documentary in class today because the film, "focuses on a similar subject" to a book we are going to read.

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , CAT , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

8 3188
Q:

____________has became the second city in the country, and the first in south India, to have a full-fledged Metro rail.

A) Bangalore B) Chennai
C) Kerala D) Hyderabad
 
Answer & Explanation Answer: A) Bangalore

Explanation:

Bengaluru has became the second city in the country, and the first in south India, to have a full-fledged Metro rail in operation following the opening of a final 12-km section of the 42-km first phase of the Metro project. The first phase, comprising an 18-km east-west line and a 24-km north-south line, built at a cost of Rs 13,845 crore, was dedicated to the nation by President Pranab Mukherjee at an event in Bengaluru.

Report Error

View Answer Report Error Discuss

Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk

4 3186
Q:

Assuming the given statements to be true, find which of the two conclusions A and B given below is/are definitely true.

Statements: C < T < L= P > Q,  N > C > Y

Conclusions:   A. P > Y       B. Y < P

A) only conclusion B is true. B) only conclusion A is true.
C) neither conclusion I nor II is true. D) either conclusion I or II is true.
 
Answer & Explanation Answer: A) only conclusion B is true.

Explanation:

From given statements, we can conclude that

N > C < T < L= P > Q  .....(1)

Here given that C > Y but in eq(1) we got that C < T < T <= P => Y is definitely less than P.

So only conclusion B is True.

Report Error

View Answer Report Error Discuss

Filed Under: Statement and Conclusions
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

3 3181
Q:

Which of the following is not soluble in water?

A) copper(II) hydroxide B) sodium chloride
C) silver nitrate D) potassium sulfate
 
Answer & Explanation Answer: A) copper(II) hydroxide

Explanation:

Sodium chloride:

The solubility rules tell you that all halides are soluble with the exception of those formed with siver, mercury, and lead ions. Since this is not the case here, sodium chloride will be soluble.

 

Silver nitrate:

It is soluble because all nitrates are soluble, without exception.

 

Potassium sulfate:

It is soluble because all sulfates are soluble with the exception of those formed with silver, calcium, barium, mercury, lead, and strontium ions.

 

Copper (II) hydroxyde:

It is insoluble because all hydroxides are insoluble with the exception of those formed with alkali metal ions and barium.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

2 3180
Q:

Who is the new Chairman of ISRO in 2018?

A) K. Sivan B) S. Manish Arya
C) A.S. Kiran Kumar D) Bibeth Roy
 
Answer & Explanation Answer: A) K. Sivan

Explanation:

Rocket specialist K. Sivan has been appointed as new Chairman of India's space agency ISRO for a three-year term. He replaces current ISRO Chairman A.S. Kiran Kumar, whose term ends January 14, 2018.

 

  • He is currently Director of Vikram Sarabhai Space Centre in Trivandrum.

 

  • His expertise gave ISRO ability to send 104 satellites in a single mission.
Report Error

View Answer Report Error Discuss

Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank PO

10 3180