Question

A worker at a snack stand opened a new box of spoons. The first day, the worker used 25 spoons from the box. The second day, the worker used 15% of the remaining spoons in the box. A total of 140 spoons were used on the second day. What was the original number of spoons in the box before any spoons were used?

Answer 1

The original number of spoons is 958

Let the total number of spoon be x.

The first day, 25 spoons were removed.

So, the remaining spoon (r) is:

$r =x -25$

15% of the remaining spoon were used.

So, we have:

$15\% \times r =15\% \times (x -25)$

This 15% represents 140 spoons.

So, the equation becomes

$15\% \times (x -25) = 140$

Express 15% as decimal

$0.15 \times (x -25) = 140$

Divide both sides by 0.15

$(x -25) = 933$

Remove brackets

$x -25 = 933$

Add 25 to both sides

$x= 958$

Hence, the original number of spoons is 958

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