To find the number of which 150 is 25%, we can set up the equation using equivalent ratios.
We know that 25% can be expressed as a fraction: \( \frac{25}{100} \). To find the unknown number (let's call it \( x \)), we set up the following equation:
\[ \frac{150}{x} = \frac{25}{100} \]
Next, we can cross-multiply to solve for \( x \):
\[ 150 \times 100 = 25 \times x \]
This simplifies to:
\[ 15000 = 25x \]
Now, we divide both sides by 25:
\[ x = \frac{15000}{25} \]
Calculating that gives:
\[ x = 600 \]
So, 150 is 25% of 600.
If you have a list of students' solutions, please share them so I can identify which one is correct.