Aptitude and Reasoning Questions

Q:

2sinAsinB is equal to

A) sin(A+B) + sin(A­-B) B) cos(A-­B) -­ cos(A+B)
C) sin(A+B) -­ sin(A-­B) D) cos(A+B) + cos(A-­B)
 
Answer & Explanation Answer: B) cos(A-­B) -­ cos(A+B)

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 2621
Q:

What is the value of cosec 11π/6?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

1 2620
Q:

Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is

A) 30 B) 300
C) 60 D) 10
 
Answer & Explanation Answer: B) 300

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

9 2618
Q:

1/8 as a decimal?

A) 0.125 B) 0.225
C) 0.325 D) 0.425
 
Answer & Explanation Answer: A) 0.125

Explanation:

1/8 to convert into decimal,

Find an equivalent fraction with a denominator of a power of 10.

In this case, we will use 1000.

18 x 125125 = 1251000

This can now be written as a decimal with 3 decimal places (because we have thousandths.

i.e, 0.125

 

Hence, 18 as a decimal = 0.125

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Filed Under: Decimal Fractions
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

9 2617
Q:

A cube is placed inside a cone of radius 20 cm and height 10 cm, one of its face being on the base of the cone and vertices of opposite face touching the cone. What is the length (in cm) of side of the cube?

A) 5 B) 6
C) 8 D) 9
 
Answer & Explanation Answer: C) 8

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Filed Under: Area
Exam Prep: Bank Exams

4 2615
Q:

Hema takes a total of 9 hours 55 min to walk a certain distance and then cycling back to the same place from where she had started. She could walk both ways in 12 hours 30 min. The time she will take to cycle both ways is :

A) 7 hrs 20 min B) 7 hrs 15 min
C) 7 hrs 35 min D) 7 hrs 40 min
 
Answer & Explanation Answer: A) 7 hrs 20 min

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Filed Under: Time and Distance
Exam Prep: Bank Exams

4 2614
Q:

The complexity of linear search algorithm is

A) O(n2) B) O(n log n)
C) O(n) D) O(log n)
 
Answer & Explanation Answer: C) O(n)

Explanation:

The worst case complexity of linear search is O(n).

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

1 2614
Q:

Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

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

Explanation:
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Filed Under: Paper Folding

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