Question

The length of a box is four inches less than triple its width in inches. What is the length of the box, in inches, if the box is six inches wide?

A) 14
B) 16
C) 18
D) 20
E) 22

Answer 1

A) 14

Explanation:

Take the width: 6 and multiply it 3 times because it says triple.

That gives you: 6 * 3 = 18

Then subtract 4 because it says four inches less than.

That gives you: 18 - 4 = 14

Answer 2

Option A.

Explanation:

Let the length of the box is = x inches

Let the width of the box = y inches

"The length of the box is 4 inches less than triple of its width"

x = 3y - 4

"Box is 6 inches wide"

y = 6 inches

By putting y = 6 in the equation

x = 3×6 - 4

= 18 - 4

= 14 inches.

Therefore, Length of the box is 14 inches.

Option A. is the answer.