Aptitude and Reasoning Questions

Q:

For any two numbers m , n ; (m+n) : (m-n) : mn = 7: 1: 60 . Find the value of 1/m : 1/n

A) 4:3 B) 8:7
C) 3:4 D) 7:8
 
Answer & Explanation Answer: C) 3:4

Explanation:

m+nm-n=7xx mn=4x3x  

 

Again   mn=12x2 

 

and         mn =60x  

 

so, 60x=12x2 x=5    

 

=>  m= 20  and    n= 15

 

Hence,    1m:1n=120:115=3:4

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Filed Under: Ratios and Proportions

47 19507
Q:

According to the given Venn diagram, the total number of non-athletic and disciplined boys is ___.

 

 

 

A) 1 B) 28
C) 20 D) 10
 
Answer & Explanation Answer: D) 10

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

1 19491
Q:

In measuring the sides of a rectangle, one side is taken 5% in excess and the other 4% in deficit. Find the error percent in the area, calculate from the those measurements.

A) .7% B) 0.8%
C) 0.9% D) 0.3%
 
Answer & Explanation Answer: B) 0.8%

Explanation:

let x and y be the sides of the rectangle then 

correct area =105100x×96100y 

 

Error% = 504500xy-xy=4500xy %

 

4500xy×1xy×100=45=0.8

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

11 19491
Q:

Eight years ago, Ajay's age was 4/3 times that of Vijay. Eight years hence, Ajay's age will be 6/5 times that of Vijay. What is the present age of Ajay ?

A) 41 yrs B) 40 yrs
C) 37 yrs D) 33 yrs
 
Answer & Explanation Answer: B) 40 yrs

Explanation:

Let the present ages of Ajay and Vijay be 'A' and 'V' years respectively.

=> A - 8 = 4/3 (V - 8) and A + 8 = 6/5 (V + 8)

=> 3/4(A - 8) = V - 8 and 5/6(A + 8) = V + 8

V = 3/4 (A - 8) + 8 = 5/6 (A + 8) - 8

=> 3/4 A - 6 + 8 = 5/6 A + 20/3 - 8

=> 10 - 20/3 = 10/12 A - 9/12 A

=> 10/3 = A/12 => A = 40.

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

26 19489
Q:

What will come in place of the question mark in the series below?

3, 5, 15, 45, 113, ?

A) 250 B) 243
C) 247 D) 261
 
Answer & Explanation Answer: B) 243

Explanation:

Ans. 
5 = 3 + (13 + 1)
15 = 5 + (23 + 2)
45 = 15 + (33 + 3)
113 = 45 + (43 + 4)
? = 113 + (53 + 5), i.e. ? = 243

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , GATE

0 19469
Q:

A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out this cloth ?

A) 300 B) 360
C) 400 D) 450
 
Answer & Explanation Answer: A) 300

Explanation:

Length of  each piece = (1/8) m = 0.125 m

Required no of pieces = (37.5/0.125) = (375 * 100) / 125 = 300.

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Filed Under: Decimal Fractions

36 19467
Q:

What is the measure of an interior angle of a regular polygon of 8 sides?

 

A) 140 B) 144
C) 135 D) 150
 
Answer & Explanation Answer: C) 135

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

1 19452
Q:

If Neena says, "Anita's father Raman is the only son of my father-in-law Mahipal", then how is Bindu, who is the sister of Anita, related to Mahipal ? 

A) Daughter B) Wife
C) Daughter-in-law D) None of these
 
Answer & Explanation Answer: D) None of these

Explanation:

Only son of Neena's father-in-law Mahipal Neena's husband. So, Raman is Neena's husband and Anita and Hindu are his daughters. 

 Thus, Bindu is the grand daughter of Mahipal. 

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Filed Under: Blood Relations

36 19450