Answer:
325 Kg is the difference in masses of the hippos.
Explanation:
Mass of the large adult male hippo is about 1850000 grams.
Since 1000 grams = 1 Kilograms
So weight of the large adult male hippo will be =
= 1850 Kg
Similarly mass of adult female hippo = 1525000 grams
mass in Kilograms =

Now difference in their masses = 1850 - 1525 = 325 Kg
Therefore, difference between the masses of male and female hippos is 325 Kg.