**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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