Aptitude and Reasoning Questions

Q:

Nine students of a class contribute a certain sum of money. Seven of them gave Rs. 50 each and the other two gave respectively Rs. 50 and Rs. 90 more than the others. The average contribution of the class of 9 students is

A) Rs. 70 B) Rs. 50
C) Rs. 100 D) Rs. 120
 
Answer & Explanation Answer: A) Rs. 70

Explanation:
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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Select the odd number from the given alternatives.

A) 133 B) 253
C) 231 D) 209
 
Answer & Explanation Answer: A) 133

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

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Q:

In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?

A) 901.54 ltr B) 821.54 ltr
C) 719.64 ltr D) 823.08 ltr
 
Answer & Explanation Answer: D) 823.08 ltr

Explanation:

Amount of pure milk= a(1 –b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 –48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

?, WX, AB, FG

A) TU B) XW
C) PQ D) UV
 
Answer & Explanation Answer: A) TU

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Filed Under: Alphabet Test
Exam Prep: Bank Exams

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Q:

If cosec 240° = x, then the value of x is

A) √2 B) 2
C) -2/√3 D) -√2
 
Answer & Explanation Answer: C) -2/√3

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Ramesh marks his article at Rs 6000 and after allowing a discount of 20%, he still earns 60% profit. What is the cost price (in Rs) of the article?

A) 3600 B) 4800
C) 3000 D) 4200
 
Answer & Explanation Answer: C) 3000

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In a certain code language, "VENUS" is written as "TVOFW". How is "FAMILY" written in that code language?

A) ZMJNBG B) GBNJMZ
C) EZLQKX D) XKHLZQ
 
Answer & Explanation Answer: A) ZMJNBG

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Filed Under: Coding and Decoding

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Q:

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find two numbers.

A) 10 & 12 B) 10 & 18
C) 12 & -18 D) -12 & 18
 
Answer & Explanation Answer: D) -12 & 18

Explanation:

Given, difference of the squares of two numbers is 180.

k2 - l2 - 180

 

Also, square of the smaller number is 8 times the larger.

= l= 8k

 

Thus, k2 - 8a - 180 = 0

k2 – 18k + 10k - 180 = 0

→  k(k - 18) + 10(k – 18) = 0

= (k + 10)(k – 18) = 0

→  k = -10, 18

 

Thus, the other number is

324 - 180 = l2 

 

→ Numbers are 12, 18 or -12, 18.

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Filed Under: Numbers
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