Question

Frame an equation for the statement: "A number is four times another number and their difference is 12".

• A. x + 4x = 12
• B. 4x - x = 12
• C. 4x = 12
• D. 5x = 15

Answer 1

The correct option is B 4x - x = 12

$\text{Let the number be}x.$
$\text{The other number is four times}x,\text{that is}4x.$

$\text{Difference between them is 12:}\Rightarrow (4x-x)=12$

$\text{Hence, the required equation is}4x-x=12.$