Aptitude and Reasoning Questions

Q:

If 3x= 4y= 12, then z is equal to

A) xy B) x + y
C) xy/x+Y D) 4x +3y
 
Answer & Explanation Answer: C) xy/x+Y

Explanation:
Taking log of all 3 we get
xln3 = yln4 =
zln12 = k
z = k/ln12 = k / ln(
3*4) = k/ln3 + ln4 = k / (k/x +k/y) = xy / (x+y)
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Three boxes of capacity 24 kg, 36 kg and 84 kg are completely filled with three varieties of wheat A, B and C respectively. All the three boxes were emptied and the three types of wheat were thoroughly mixed and the mixture was put back in the three boxes. How many kg of type A wheat would be there in the third box (in kg)?

A) 10 B) 12
C) 14 D) 16
 
Answer & Explanation Answer: C) 14

Explanation:
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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

Find the next figure for the given series.

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

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

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Q:

If A = (-14 + 4) and B = 4 - 14, then AB = 

A) 0 B) -100
C) 100 D) -1
 
Answer & Explanation Answer: C) 100

Explanation:
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Exam Prep: Bank Exams

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Q:

The standard deviation of the set {10, 11, 9, 11, 9} is

A) 1/√5 B) 2/√5
C) 3/√5 D) 0
 
Answer & Explanation Answer: B) 2/√5

Explanation:
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Q:

In the given figure, PQR is a quadrant whose radius is 7 cm. A circle is inscribed in the quadrant as shown in the figure. What is the area (in sq.cm) of the circle?

 

A) 385 – 221√2 B) 308 – 154√2
C) 154 – 77√2 D) 462 – 308√2
 
Answer & Explanation Answer: D) 462 – 308√2

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

1 packet of biscuits costs Rs 16 but a pack of 4 of the same packet of biscuits costs Rs 56. What is the effective discount (in %) on the pack?

A) 8 B) 10
C) 7.5 D) 12.5
 
Answer & Explanation Answer: D) 12.5

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Two cars A and B travel from one city to another city, at speeds of 60 km/hr and 108 km/hr respectively. If car B takes 2 hours lesser time than car A for the journey, then what is the distance (in km) between the two cities?

A) 240 B) 270
C) 300 D) 330
 
Answer & Explanation Answer: B) 270

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams

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