Aptitude and Reasoning Questions

Q:

If 'W' means 'x', 'X' means '-', 'Y' means '+' and 'Z' means '/', then 28 Z 7 W 8 X 6 Y 4 = ?

 

A) 30 B) 3/2
C) 32 D) 34
 
Answer & Explanation Answer: A) 30

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

0 62001
Q:

What is the value of (sin45 - √3) ?

 

A) (1-√6)/√2   B) (4-√3)/2√3  
C) -1/2√3   D) (2-√3)/2√3
 
Answer & Explanation Answer: A) (1-√6)/√2  

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 61978
Q:

(51 + 52 + 53 + .........+100) is equal to

Answer

51 + 52 + 53 + ...........+ 100


 = (1 + 2 + 3 + .... + 100) - (1 + 2 + 3 + ...... + 50)


 = It is in the form of n(n+1)2 series summation


= n1 = 100 , n2 = 50


=100100+12 - 5050+12


 =  (5050 - 1275) = 3775

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Subject: Numbers Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

300 61917
Q:

What is the first term of an arithmetic progression of positive integers ?

(I) Sum of the squares of the first and the second term is 116.

(II)The fifth term is divisible by 7.

A) Only a is sufficient B) Only b is sufficient
C) Both a & b are necessary D) None
 
Answer & Explanation Answer: A) Only a is sufficient

Explanation:

The sum of square of two no is 116 i.e no lie 1-11, because 11x11 =121 which is greater than 116
again after cheaking all possible pair of no only 4 and 10 satisfy this condsn , again the progression is of positive integer so 10 cant not be 1st term
so the 1st term is 4,
but from the 2nd we cant able to find the 1st term

so only 1st statement is sufficient to answer the question

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

2 61916
Q:

What will be the next term in 

BKS, DJT, FIU, HHV, __

A) IJX B) IGX
C) JGW D) JGU
 
Answer & Explanation Answer: C) JGW

Explanation:

Here the first letter of the group is moved with a gap of one letter, the second letter of the group is backwardness and the third letter of the group is forwardness proceeding like this we get the letter group "JGW"

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Filed Under: Number Series

35 61901
Q:

Angles of the triangle are in the ratio of 1:2:3. Choose the correct triangle for the given ratio.

 

A) Equilateral B) Isosceles
C) Right angle D) Obtuse angled
 
Answer & Explanation Answer: C) Right angle

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

1 61865
Q:

The length of a diagonal in cms of a rectangle of length 5 cm and width 6 cm is

 

A) 61 B) ±61
C) 11 D) ±11
 
Answer & Explanation Answer: A) 61

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

3 61681
Q:

A and B are partners in a business. A contributes 1/4 of the capital for 15 months and B received 2/3 of the profit. For how long B's money was used ?

A) 3 months B) 6 months
C) 10 months D) 12 months
 
Answer & Explanation Answer: C) 10 months

Explanation:

Let the total profit be Rs. z. Then,

B's share = Rs. 2z/3,  A's share = Rs. ( z - 2z/3 ) = Rs. z/3.

A : B = z/3 : 2z/3 = 1:2

Let the total capital be Rs, X and suppose B's money was used for x months. Then.

(1(x) / 4 * 15) / (3x) / 4 * y) = 1/2 <=> y = (15 * 2 / 3) = 10 .

 Thus, B's money was used for 10 months.

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Filed Under: Partnership

125 61652