Answer:
Temperature decreased by 25%
Step-by-step explanation:
Let initial temperature be t
Step 1
Increase by 25%:
- t + 25% = t + 0.25 t = 1.25 t
Step 2
Decrease by 40%:
- 1.25 t - 40% = 1.25 t - 0.4 * 1.25 t= 1.25 t - 0.5 t = 0.75 t
Temperature changed from t to 0.75 t
The difference in %:
- 0.75 t - t = -0.25 t = 25% decrease
Temperature decreased by 25%
