CAT Questions

Q:

A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C which is at midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ? 

A) 180 km B) 160 km
C) 140 km D) 120 km
 
Answer & Explanation Answer: A) 180 km

Explanation:

Speed in downstream = (14 + 4) km/hr = 18 km/hr;

Speed in upstream = (14 – 4) km/hr = 10 km/hr.

Let the distance between A and B be x km. Then,

x/18 + (x/2)/10 = 19 ⇔ x/18 + x/20 = 19 ⇒ x = 180 km.

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Filed Under: Boats and Streams
Exam Prep: AIEEE , Bank Exams , CAT
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89 28261
Q:

Consider the following statements

P : Suman is brilliant
Q : Suman is rich
R : Suman is honest

The negation of the statement "Suman is brilliant and dishonest if and only if Suman is rich" can be expressed as

1)  P~RQ

2)  ~PRQ   

3)  QP~R  

4) ~QP~R

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

Explanation:

Suman is brilliant and dishonest is   P ~ R
Suman is brilliant and dishonest iff suman is rich is
  (P  ~ R)

 

Negative of statement is expressed as
~ (Q (P  ~ R)).

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Filed Under: Arithmetical Reasoning
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank Clerk

11 28202
Q:

Simplify the following equation

55.55 + 155 + 15.55 + 0.5 + 0.05 = ?

A) 226.65 B) 196.55
C) 202.35 D) 216.66
 
Answer & Explanation Answer: A) 226.65

Explanation:

55.55 + 155 + 15.55 + 0.5 + 0.05 = ?

 

 55.55

155.00

 15.55

   0.5

   0.05

_______

226.65

_______

 

Hence, the value of the given equation 55.55 + 155 + 15.55 + 0.5 + 0.05 = 226.65.

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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5 28172
Q:

Find out the wrong number in the following series:

5, 15, 30, 80, 180, 540, 1080

A) 540 B) 180
C) 30 D) 80
 
Answer & Explanation Answer: D) 80

Explanation:

There should be 90 instead of 80
so we can have a series
5, 5x3, 15x2, 30x3, 90x2, 180x3, 540x2 and 1080x3 and so on...

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Filed Under: Odd Man Out
Exam Prep: Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

6 28143
Q:

Find the odd man out?

16, 254, 1296, 4096, 10000

A) 16 B) 254
C) 1296 D) 10000
 
Answer & Explanation Answer: B) 254

Explanation:

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

 

24, 44, 64, 84, 104,...

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.

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2 28105
Q:

The word Gotra occurs for the first time in

A) Rigveda B) Samaveda
C) Yajurveda D) Atharvaveda
 
Answer & Explanation Answer: A) Rigveda

Explanation:

The word Gotra occurs for the first time in Rigveda. In Hindu society, the term gotra is commonly considered to be equivalent to a clan. It broadly refers to people who are descendants in an unbroken male line from a common male ancestor or patriline.

Generally, the gotra forms an exogamous unit, with the marriage within the same gotra being prohibited by custom, being regarded as incest.

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

71 28016
Q:

Draw the conclusion from the following sentences

1. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons.
2. Apartments in the Livingston Gate cost more than apartments in the The Gaslight Commons.
3. Of the three apartment buildings, the Livingston Gate costs the most.

If the first two statements are true, the third statement is

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Since the Gaslight Commons costs more than the Riverdale Manor and the Livingston Gate costs more than the Gaslight Commons, it is true that the Livingston Gate costs the most.

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Subject: Statement and Conclusions
Exam Prep: AIEEE , Bank Exams , CAT , GRE , TOEFL
Job Role: Bank Clerk , Bank PO

2 27995
Q:

5 C in an OF?

A) 5 Cards in an Old Fan B) 5 Circles in an Olympic Flag
C) 5 Colors in an Old Football D) 5 Colors in an Old Flag
 
Answer & Explanation Answer: B) 5 Circles in an Olympic Flag

Explanation:

5 C in an OF denotes 5 Circles in an Olympic Flag.

These are riddles of type

12 S of the Z

52 W in a Y.

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192 27928