Question

Which rule can be used to find the output numbers in this table?

A
B
C
Input
3 6 8 11 12
Output 21 42 56 77 84
Divide the input number by 7.
Multiply the input number by 7.
Subtract the input number from 84.
D Multiply the input number by 5.

Answer 1

D. Multiply the input number by 7

Explanation:

Make a table in order to help guide our thought on what relates these numbers.

Input Output

3 21

6 42

8 56

11 77

12 84

A first glance suggests the Input is multiplied by 7 to reach the Output. This can be confirmed with a calculation for each Input value. None of the other options even come close.