Aptitude and Reasoning Questions

Q:

Find the odd man out?

12, 48, 168, 502, 1260

A) 48 B) 168
C) 502 D) 1260
 
Answer & Explanation Answer: C) 502

Explanation:

The given series is 12, 48, 168, 502, 1260

12

12 x 4 = 48

48 x 3.5 = 168

168 x 3 = 504

504 x 2.5 = 1260

 

Hence, the odd man out in the given series is 502.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

4 50039
Q:

Find the wrong number in the following series?

1500, 1475, 1448, 1419, 1389, 1355, 1320

A) 1475 B) 1419
C) 1389 D) 1355
 
Answer & Explanation Answer: C) 1389

Explanation:

Take a look at the below sereies :

1500 - 25 = 1475

1475 - 27 = 1448

1448 - 29 = 1419

1419 - 31 = 1388

1388 - 33 = 1355

1355 - 35 = 1320

It clearly shows 1389 is Wrong Number

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Filed Under: Number Series

20 50035
Q:

 I. A. B, C. D, E and F are six members of a family. 

 II. One couple has parents and their children in the family. 

 III. A is the son of C and E is the daughter of A. 

 IV. D is the daughter of F who is the mother of E. 

 Which of the following pairs is the parents of the couple ? 

A) AB B) BC
C) AF D) CF
 
Answer & Explanation Answer: B) BC

Explanation:

E is the daughter of A and F is the mother of E So, A is the father of E and hence the husband of F. Now,

D is the daughter of F So. D and E are the daughters of A and F Also. A is the son of C. 

Now, only B remains Thus. B and C are the parents of A. 

Clearly. B and C are the parents of the couple 

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Filed Under: Blood Relations

13 50033
Q:

Which of the following conditions is correct for a right angled triangle?

 

A) Sum of the two angles of a triangle is greater than the third angle B) Sum of the two angles of a triangle is less than the third angle
C) Sum of the two angles of a triangle is equal to the third angle D) None of these
 
Answer & Explanation Answer: C) Sum of the two angles of a triangle is equal to the third angle

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

0 50007
Q:

What annual instalment will discharge a debt of Rs 1092 due in 3 years at 12% simple interest?

A) Rs.325 B) Rs.545
C) Rs.560 D) Rs.550
 
Answer & Explanation Answer: A) Rs.325

Explanation:

Let each instalment be Rs.x .

 

1st year =  [x + (x * 12 * 2)/100] 

2nd year = [ x + (x *12 * 1)/100] 

3rd year = x 

Then, [x + (x * 12 * 2)/100] + [ x + (x *12 * 1)/100] + x =1092 

3x + ( 24x/100 ) + ( 12x/100 )  = 1092 

336x =109200

Therefore, x = 325 

Each instalment = Rs. 325

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Filed Under: Simple Interest
Exam Prep: GRE

204 49998
Q:

L.C.M of two prime numbers x and y (x>y) is 161. The value of 3y-x is :

A) -2 B) -1
C) 1 D) 2
 
Answer & Explanation Answer: A) -2

Explanation:

 H. C. F of two prime numbers is 1.  Product of numbers = 1 x 161 = 161.

 Let the numbers be a and b . Then , ab= 161.

 Now, co-primes with  product 161 are (1, 161) and (7, 23).

 Since x and y are prime numbers and x >y , we have x=23 and y=7.

 Therefore,  3y-x = (3 x 7)-23 = -2

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Filed Under: HCF and LCM

119 49951
Q:

If (x + 1x) = 2, then find the value of (x3 + 1x3) ÷ (x18 + 1x18)

 

A) 2/9 B) 5
C) 1 D) 1/9
 
Answer & Explanation Answer: C) 1

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 49927
Q:

Solve : x - 3 = 3x + 7

 

 

A) 5 B) -5
C) 1 D) 10/4
 
Answer & Explanation Answer: B) -5

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 49874