Aptitude and Reasoning Questions

Q:

The average marks of 50 students in an examination was 65. It was later found that the marks of one student had been wrongly entered as 83 instead of 38. The correct average is?

A) 63.9 B) 64.5
C) 64.7 D) 64.1
 
Answer & Explanation Answer: D) 64.1

Explanation:
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Filed Under: Average
Exam Prep: Bank Exams

1 3927
Q:

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
IJ, PQ, XY, ?

A) DE B) OP
C) GH D) WV
 
Answer & Explanation Answer: C) GH

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams

2 3927
Q:

Statements : National Aluminium Company has moved India from a position of shortage to self-sufficiency in the metal.

Conclusions :

a) Previously, India had to import aluminium.
b) With this speed, it can soon become a foreign exchange earner.

A) Only a follows B) Only b follows
C) Neither a nor b follows D) Both a and b follows
 
Answer & Explanation Answer: D) Both a and b follows

Explanation:

According to the statement, National Aluminium Company has moved India from a position of shortage in the past to self-sufficiency in the present. This means that previously, India had to import aluminium. So, I follows. Also, it can be deduced that if production increases at the same rate, India can export it in future. So, II also follows.

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Filed Under: Statement and Conclusions
Exam Prep: AIEEE , Bank Exams , CAT
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1 3926
Q:

What is Latus Rectum of Parabola?

A) line segment B) vertex
C) focus D) major axis
 
Answer & Explanation Answer: A) line segment

Explanation:

As parabola is a locus of a point, which moves so that its distance from focus and directrix is always equal.

 

The latus rectum of a conic section is the chord (line segment) that passes through the focus, is perpendicular to the major axis and has both endpoints on the curve. The length of the latus rectum is determined differently for each conic.

                                      download1522126663.jpg image

 

The length of a parabola's latus rectum is 4p, where p is the distance from the focus to the vertex.

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Filed Under: Analytical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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14 3919
Q:

36 of what number is 18?

A) 38 B) 42
C) 50 D) 62
 
Answer & Explanation Answer: C) 50

Explanation:

Let the required number be 'p'

36 of what number is 18 implies 36% of p = 18

=> 36 x p/100 = 18

=> p = 1800/36

=> p = 50.

 

Hence, 36% of 50 is 18.

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Filed Under: Percentage
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9 3915
Q:

Should 'computer knowledge' be made a compulsory subject for all the students at secondary school level?

Arguments:

I. No. Our need is 'bread' for everyone, we cannot follow western models.

II. Yes. We cannot compete in the international market without equipping our children with computers.

A) Only argument I is strong B) Only argument II is strong
C) Neither I nor II is strong D) Both I and II are strong
 
Answer & Explanation Answer: B) Only argument II is strong

Explanation:

Nowadays, computers have entered all walks of life and children need to be prepared for the same. So, argument II is strong. Argument I holds no relevance.

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Filed Under: Statement and Arguments
Exam Prep: GRE

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Q:

Sanjay's test marks in two subjects, English and Hindi are in the ratio 7 : 11. If he got 20 marks more in Hindi than in English, what are his marks in English?

A) 35 B) 55
C) 45 D) 65
 
Answer & Explanation Answer: A) 35

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

5 3910
Q:

Find the next number in the series 2, 3, 4, 8, 9, 10, 11, 16, 17, 18, 19, 20,...

A) 27 B) 26
C) 24 D) 25
 
Answer & Explanation Answer: B) 26

Explanation:

The pattern is three consecutive numbers and then three consecutive numbers missing.Then four consecutive numbers and then four consecutive numbers missing.Then five consecutive numbers and then five consecutive numbers missing.

 

The next number=20+6=26

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Filed Under: Numbers
Exam Prep: Bank Exams , CAT
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8 3909