Answer:
20%
Step-by-step explanation:
Given parameters:
Initial volume of water = 5cm³
New volume of water = 4cm³
Unknown:
Percentage decrease of water in the tank = ?
Solution:
To find the percentage decrease;
Percentage decrease = [tex]\frac{Old - New}{Old}[/tex] x 100
Percentage decrease = [tex]\frac{5-4}{5}[/tex] x 100 = 20%
