Rule
Definition of Rule

• Rule is the procedure that a count must follow.

Example of Rule

• 7, 16, 43,... is the Pattern for which the Rule is "Multiply by 3 and subtract by 5 to get the next number" as each number is obtained by multiplying by 3 and then subtracting the result by 5 to get the next number.

• The First Value in the input column is 3 and the output is 0. This is obtained by adding 2 to the input Value and subtracting 5 from the result, i.e. 3 + 2 = 5 - 5 = 0. The second Value in the input column is 6 and the output is 3. This is obtained by adding 2 to the input Value and subtracting 5 from the resultant value, i.e. 3 + 2 = 5 - 5 = 0. The third Value in the input column is 8 and the output is 5. This is obtained by adding 2 to the input Value and subtracting 5 from the resultant value, i.e. 8 + 2 = 10 - 5 = 5. The fourth Value in the input column is 10 and the output is 7. This is obtained by adding 2 to the input Value and subtracting 5 from the resultant value, i.e. 10 + 2 = 12 - 5 = 7.

Solved Example on Rule

What is the Rule for the table?

Choices:
A. Add 2 and multiply by 1.
B. Multiply by 2 and subtract 2.
C. Subtract 2 and add 4.
D. Divide by 2 and add 3.
Correct Answer: D
Solution:
Step 1: Consider the First input Value given in the table and try each Rule on the Value to check if we get the corresponding output value.
Step 2: Consider 4, (4 + 2) × 1 = 6, not 5. So, choice 1 does not work.
Step 3: (4 × 2) - 2 = 6, not 5. So, choice 2 does not work.
Step 4: (4 - 2) + 4 = 6, not 5. So, choice 3 does not work.
Step 5: (4 ÷ 2) + 3 = 5, choice 4 works.
Step 6: So, 'divide by 2 and add 3' is the Rule for the table.

Related Terms for Rule

• Count
• Number Patterns
• Pattern

Additional Links for Rule

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