Aptitude and Reasoning Questions

Q:

An inspector is 228 meter behind the thief. The inspectorruns 42 meters and the thief runs 30 meters in a minute. Inwhat time will the inspector catch the thief?

A) 19 minutes B) 20 minutes
C) 18 minutes D) 21 minutes
 
Answer & Explanation Answer: A) 19 minutes

Explanation:

Inspector s 228 meter behind the thief and now aftersome x distance he will catch the thief. So
x/30 = 228+x/42 => x = 570 m
(228 + 570) / 42 = 19 min

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

A can work twice as fast as B. A and C together can work three times as fast as B. if A,B and C complete a job in 30 days working together, in how many days can each of them complete the work.

 

A) 50,100,120 B) 60,120,120
C) 60,100,80 D) 40,80,100
 
Answer & Explanation Answer: B) 60,120,120

Explanation:
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Filed Under: Analytical Reasoning
Exam Prep: Bank Exams

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Q:

The average of 50 consecutive natural numbers is x. What will be the are average when the next four natural numbers are also included?

A) x + 1 B) x + 2
C) x + 4 D) x + (x/54)
 
Answer & Explanation Answer: B) x + 2

Explanation:
Sum of n consecutive natural numbers = n(n+1)/2
Average of n consecutive natural numbers = (n+1)/2
For first 50 average = 51/2 = x
Last 50 average = 55/2 = x+2
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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Which of the following interchanges in signs and numbers will make the given equation correct?
8 x 9 + 2 = 74

A) x and =, 2 and 9 B) x and +, 8 and 2
C) + and x, 8 and 9 D) + and =, 74 and 2
 
Answer & Explanation Answer: B) x and +, 8 and 2

Explanation:
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Filed Under: Mathematical Operations
Exam Prep: Bank Exams

7 3461
Q:

What amount must you invest now at 4% compounded monthly to accumulate $10,000 after 3 year

A) 8695 B) 7695
C) 3695 D) 4695
 
Answer & Explanation Answer: A) 8695

Explanation:

Given: j = 4%, m=  12, FV = $10,000, Term=  3.5 years
Then n  =m  *Term  12(3.5)  42

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

0 3459
Q:

In the following question, select the missing number from the given series.
19, 11, 13, 16, 15, 17, 13, 19, 21, ?

A) 10 B) 11
C) 12 D) 15
 
Answer & Explanation Answer: A) 10

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

8 3457
Q:

If 3A = 2B = 4C; then what is A : B : C?

A) 3 : 2 : 4 B) 6 : 4 : 3
C) 4 : 6 : 3 D) 2 : 3 : 4
 
Answer & Explanation Answer: C) 4 : 6 : 3

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

4 3455
Q:

If x = 2 + 223 + 213 then find the value of x3-6x2+6x ?

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

Explanation:

Given that x = 2+ 223 + 213

 

So x - 2 = 223 + 213

 

Now cubing on both sides, we get

 

 

=> x3-8-6x2+12x = 4 + 2 + 6(x-2)

 

Therefore, x3-6x2+6x = -6 + 8 = 2

 

 

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Filed Under: Square Roots and Cube Roots
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

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