Question

In one afternoon, Brian sold 25% of his chocolate bars. If he had 72 bars left, how many chocolate bars did he have to begin with?

Answer 1

96 bars

Explanation:

100% - 25% = 75%

`(75)/(100)` =
`(72)/(x)`

x =
`(100*72)/(75)` = 96 bars

Answer 2

96 chocolate bars

Explanation:

If Brian sold 25% of his chocolate bars and now he's left with 72, let's subtract 25% from 100%.

100% - 25% = 75%

Now, let's set up the equation & solve:

1. Set up Equation

• 75/100 = 72/x

2. Cross-Multiply

• 75/100 = 72/x
• 75 · x = 72 · 100
• 75x = 7200

3. Divide both sides by 75

• 75x = 7200
• 75x/75 = 7200/75
• x = 96

Therefore, Brian started with 96 chocolate bars.