Q:

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?).Choose the missing terms out of the given alternatives. 2Z5, 7Y7, 14X9, 23W11, 34V13, ?

A) 47U15 B) 47V14
C) 45U15 D) 27U24
 
Answer & Explanation Answer: A) 47U15

Explanation:

The first numbers increase by 5, 7, 9, 11....
The letters move one step backward.
The last numbers are consecutive odd numbers.

Report Error

View Answer Workspace Report Error Discuss

186 8100
Q:

1, 2, 3, 10, ?, 9802

A) 99 B) 199
C) 299 D) 999
 
Answer & Explanation Answer: A) 99

Explanation:

\inline \fn_cm 2=1^{2}+1;\: 3=2^{2}-1;\: 10=3^{2}+1

\inline \fn_cm \therefore \: ?=10^{2}-1=99

Report Error

View Answer Workspace Report Error Discuss

155 5946
Q:

Find out the wrong term in the series 2, 5, 10, 50, 500, 5000

A) 5000 B) 500
C) 10 D) 50
 
Answer & Explanation Answer: A) 5000

Explanation:

Each term of the series is the product of the preceding two terms
So, 5000 is wrong and it must be replaced by (500*50) = 25000

Report Error

View Answer Workspace Report Error Discuss

184 5244
Q:

Find out the wrong term in the series 2, 3, 4, 4, 6, 8, 9, 12, 16

A) 9 B) 12
C) 16 D) 8
 
Answer & Explanation Answer: A) 9

Explanation:

The given sequence is a combination of three series:
i)1st, 4th, 7th terms i.e, 2, 4, 9
ii)2nd, 5th, 8th terms i.e, 3, 6, 12
iii)3rd, 6th, 9th terms i.e, 4, 8, 16
In each one of i, ii, iii, each term is twice the preceding term.
So, 9 is wrong and must be replaced by (4*2) = 8

Report Error

View Answer Workspace Report Error Discuss

63 4917
Q:

Find the missing number in the series?

4, 18, ?, 100, 180, 294, 448

A) 48 B) 50
C) 58 D) 60
 
Answer & Explanation Answer: A) 48

Explanation:

Report Error

View Answer Workspace Report Error Discuss

65 4748