Aptitude and Reasoning Questions

Q:

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
DK, FN, HQ, ?

A) KS B) JT
C) KT D) JS
 
Answer & Explanation Answer: B) JT

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

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Q:

If 27th December 2009 was a Thursday, then what day of the week was it on 1st March 2010?

A) Thursday B) Friday
C) Sunday D) Monday
 
Answer & Explanation Answer: B) Friday

Explanation:
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Filed Under: Calendar
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

How many 3-digit numbers can be formed with the digits 1,4,7,8 and 9 if the digits are not repeated ?

A) 60 B) 26
C) 50 D) 64
 
Answer & Explanation Answer: A) 60

Explanation:

Three digit number will have unit’s, ten’s and hundred’s place.

 

Out of 5 given digits any one can take the unit’s place.

 

This can be done in 5 ways. ...              (i)

 

After filling the unit’s place, any of the four remaining digits can take the ten’s place.

 

This can be done in 4 ways. ...              (ii)

 

After filling in ten’s place, hundred’s place can be filled from any of the three remaining digits.

 

This can be done in 3 ways. ... (iii) 

 

So,by counting principle, the number of 3 digit numbers = 5x 4 x 3 = 60

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Q:

The average age of husband, wife and their child 3 years ago was 24 years and that of wife and child 5 years ago was 25 years. The present age of the husband is:

A) 21 yrs B) 27 yrs
C) 29 yrs D) 31 yrs
 
Answer & Explanation Answer: A) 21 yrs

Explanation:

Sum of ages of husband, wife and child= (24 × 3) + 9 = 81 years

Sum of ages of wife and child => 25 × 2 + 10 = 50 + 10 = 60 years

Age of husband = 81 - 60 = 21 years.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

5 4397
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

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Q:

A bank offers 9% p.a. simple interest on an investment. At the end of 4 years the interest earned was $215. How much was invested?

A) 597.22 B) 345
C) 456 D) 378
 
Answer & Explanation Answer: A) 597.22

Explanation:

I = (p x r x t)/100

 

 

 

 

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

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Q:

XYZ is right angled at Y. If mZ = 60°, then find the value of (cotX - 1/3).

A) (3√3-1)/3 B) (2√3-√6)/2√2
C) -5/3 D) (2-√3)/2√3
 
Answer & Explanation Answer: A) (3√3-1)/3

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

A research team of 6 people is to be formed from 10 chemists,5 politicians, 8 economists and 15 biologists.How many teams have atleast 5 chemists?

A) 7350 B) 6400
C) 6379 D) 7266
 
Answer & Explanation Answer: D) 7266

Explanation:

10C5 x 28C1 x 10C6 = 7266

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