Answer:
There was 40% decrease in the mass of the pumpkin.
Explanation:
Given:
Mass of pumpkin before carving = 6.5 kg
Mass of pumpkin after carving = 3.9 kg
Decrease in mass = Mass of pumpkin before carving - Mass of pumpkin after carving = 6.5 kg - 3.9 kg = 2.6 kg
Now to find the percentage decrease in mass we need to divide Decrease in mass with the total mass of pumpkin before carving and then multiply by 100
% Decrease in mass =
![\frac{\textrm{Decrese in mass}}{\textrm{Mass of Pumpkin before carving}}*100 = 40\%](https://img.qammunity.org/2020/formulas/mathematics/middle-school/gadn0kmakzcbwqoh4un3vtdp6f3ovmzbog.png)
Hence, there was 40% decrease in the mass of the pumpkin.