# 9th Class Mental Ability Alpha-Numeric, Number, Ranking and Time Sequence, Logical, Alphabet Alpha-Numeric, Number, Ranking and Time Sequence Test

## Alpha-Numeric, Number, Ranking and Time Sequence Test

Category : 9th Class

Type-I

Alpha-Numeric Test

A sequence made up of three different systems namely Alpha or Letters (A, B, C, D,..., Z), Numeric or Digits (0, 1, 2, 3,...,9) and symbols is called Alpha-Numeric Sequence.

Type- II

Number Test

In this type of problems generally a number sequence is given. A candidate is required to apply some rule(s) on the sequence.

Type-III

Ranking Test

In this type of problems, usually a rank puzzle is given. It may be in the form of comparison of sizes, heights, weights, strengths, ages etc. among the objects/persons.

Type-IV

Time Sequence Test

In this type of problems, a time puzzle is given. One is required to decipher it.

1 ordinary year = 365 days

1 leap year = 366 days

1 century = 100 years

Number of days in February in a non-leap year = 28.

Number of days in February in a leap year = 29.

EXAMPLE

7 % 6 A # 5 P Q$\div$R + U 4 @  $\times$ 3 $\to$ H J * 2 $\pi$

In the reverse order of the above sequence, how many such symbols are there each of which is either immediately preceded by a vowel or immediately followed by a letter but not both?

(a) Two                         (b) Three                        (c) Four                         (d) Five

Explanation (b):

The reverse order of the given sequence is

$\pi$2 * J H $\to$ 3 $\times$  @ 4 U + R  $\div$  Q P 5 # A 6 % 7

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