Aptitude and Reasoning Questions

Q:

Find the value of 'n' for which the nth term of two AP'S:

15,12,9.... and -15,-13,-11...... are equal?

A) n = 2 B) n = 5
C) n = 29/5 D) n = 1
 
Answer & Explanation Answer: C) n = 29/5

Explanation:

Given are the two AP'S:

15,12,9.... in which a=15, d=-3.............(1) 

-15,-13,-11..... in which a'=-15 ,d'=2.....(2)

 

now using the nth term's formula,we get

a+(n-1)d = a'+(n-1)d'

substituting the value obtained in eq. 1 and 2,

15+(n-1) x (-3) = -15+(n-1) x 2

=> 15 - 3n + 3 = -15 + 2n - 2

=> 12 - 3n = -17 + 2n

=> 12+17 = 2n+3n

=> 29=5n

=> n= 29/5

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Filed Under: Permutations and Combinations
Job Role: Analyst

19 84369
Q:

Find the missing number?

5 19 49 101 181 295 ?

A) 401 B) 351
C) 449 D) 501
 
Answer & Explanation Answer: C) 449

Explanation:

Given number series is 5  19  49  101  181  295 ?

Here the series follows pattern that

5   19   49   101   181   295  ?

  14   30   52    80     114   (difference)

      16  22   28     34 (difference)

         6     6     6  (Common difference)

 

Therefore, the missing number in the series is ? = 295 + 115 + 34 + 6 = 449.

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

4 84312
Q:

Find out the wrong number in the series.

7, 8, 18, 57, 228, 1165, 6996

A) 8 B) 18
C) 57 D) 228
 
Answer & Explanation Answer: D) 228

Explanation:

Let the given numbers be A, B, C, D, E, F, G.

Then, A, A x 1 + 1, B x 2 + 2, C x 3 + 3, D x 4 + 4, E x 5 + 5, F x 6 + 6 are the required numbers.

Clearly, 228 is wrong.

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Filed Under: Odd Man Out

34 83996
Q:

Find the odd word/letters/number pair from the given alternatives.

(A) 4-16 (B) 8-24 (C) 14-26 (D) 16-36

A) A B) B
C) C D) D
 
Answer & Explanation Answer: C) C

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

2 83982
Q:

Choose the antonym of the word given from the following options ?

MUNDANE

A) Extraordinary B) Regular
C) Visionary D) Routine
 
Answer & Explanation Answer: A) Extraordinary

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

10 83979
Q:

At what time between 5 and 6 o' clock are the hands of a 3 minutes apart ?

A) 24min B) 12min
C) 13min D) 14min
 
Answer & Explanation Answer: A) 24min

Explanation:

In this type of problems the formuae is
(5*x+ or - t)*12/11
Here x is replaced by the first interval of given time. Here x is 5.
t is spaces apart

  Case 1 : (5*x + t) * 12/11

 (5*5 + 3) * 12/11

 28 * 12/11 = 336/11= 31511 min

therefore the hands will be 3 min apart at 31 5/11 min past 5.

Case 2 : (5*x - t) * 12/11

(5*5 -3 ) * 12/11

 22 *12/11 = 24 min 

 therefore the hands will be 3 min apart at 24 min past 5

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

201 83781
Q:

Correct underlined words if necessary in the following sentence ?

Have you been more careful, the accident could have been averted.

A) Have you been B) If you have been
C) Had you been D) If you could have been
 
Answer & Explanation Answer: C) Had you been

Explanation:

As the sentence talks about the past it is apt to say. 'Had you been more careful ...'.

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

17 83712
Q:

In the following question, select the missing number from the given series.

 

7, 11, 15, 19, 23, ?

 

A)  29   B)  30  
C) 27   D) 31
 
Answer & Explanation Answer: C) 27  

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

32 83566