Aptitude and Reasoning Questions

Q:

In a mixture of 60 litres, the ratio of milk and water is 2:1. What amount of water must be added to make the ratio of milk and water as 1:2?

A) 42 Litres B) 56 Litres
C) 60 Litres D) 77 Litres
 
Answer & Explanation Answer: C) 60 Litres

Explanation:

Ratio of milk and water = 2 : 1
Quantity of milk = 60 X 2/3 = 40 litre
Quantity of water = 20 litre
To make ratio, 1: 2, we have to double the water that of milk
So, water should be 80 litre.
That means 80 – 20 = 60 litre water to be added.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

3 3046
Q:

Two items A and B have equal cost price. Item A is sold at 40% profit and item B is sold at an amount 20% less than the selling price of item A. If the total profit is 156 Rs then find the cost price of A.

A) Rs. 300 B) Rs. 350
C) Rs. 400 D) Rs. 450
 
Answer & Explanation Answer: A) Rs. 300

Explanation:

Let the cost price of A as well as B is 100 Rs.
Then, ATQ:
Selling Price of A = 100+40 = 140
And Selling Price of B = 140 - (140*0.2) = 140 - 28 = 112
Total selling price = 140+112 = 252 Rs.
Total Cost price = Rs. 200
So by taking cost price = 100 Rs.
Total profit = 52 Rs.
Total profit will be Rs. 156 when cost price = (100/52)*156 = Rs. 300.

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

A : Budgetery allocation for building a better railway network, eg constructing new railway lines, has increased

B : There has been a substantial drop in the number of passengers opting for air travel

A) If statement (A) is the cause and statement (B) is its effect B) If statement (B) is the cause and statement (A) is its effect
C) If both the statements (A) and (B) are independent causes D) If both the statements (A) and (B) are effects of some common cause
 
Answer & Explanation Answer: D) If both the statements (A) and (B) are effects of some common cause

Explanation:

Both are the effects of a common cause. The Railways has gone in a reviving mode.

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Q:

In the following question, select the related number from the given alternatives.

43 : 70 : : 94 : ?

A) 121 B) 134
C) 144 D) 169
 
Answer & Explanation Answer: A) 121

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

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Q:

Identify the diagram that best represents the relationship among the given classes.

Search engines, Google, Bing, Yahoo

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

Explanation:
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Filed Under: Image Analysis
Exam Prep: Bank Exams

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Q:

Which sentence was written correctly?

A) I asked, "What kind of insect is that?" B) I asked what kind of insect is that?
C) I asked, "what kind of insect is that?" D) I asked, "What kind of insect is that"?
 
Answer & Explanation Answer: A) I asked, "What kind of insect is that?"

Explanation:
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Q:

Select the related word/letters/numbers from the given alternatives:

121 : 12 :: 25 : ?

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: B) 6

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

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Q:

If (4a +7b) (4c-7d) = (4a -7b) (4c +7d, then which one of the following is correct ?

A) a/b = c/d B) a/d = c/b
C) a/b = d/c D) none
 
Answer & Explanation Answer: A) a/b = c/d

Explanation:

(4a+7b)(4c-7d) = (4a-7b)(4c+7d)

(4a+7b)/(4a-7b) = (4c+7d)/(4c-7d)

Using componendo and dividendo

(4a+7b)+(4a-7b) / (4a+7b)-(4a-7b)

= (4c+7d)+(4c-7d) / (4c+7d)-(4c-7d)

Or 8a/14b = 8c/14d

Or a/b = c/d

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Filed Under: Simplification
Exam Prep: Bank Exams

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