Final answer:
Mang Donato harvested 85 kilograms of mangoes, and Leon harvested twice as much, totaling 170 kg. Together, they harvested 255 kg of mangoes in all.
Step-by-step explanation:
Mang Donato harvested 85 kg of mangoes, and his brother, Leon, harvested twice as many kilos of mangoes as him. To find out how many kilos Leon harvested, we multiply Mang Donato's amount by 2:
Leon's harvest = 85 kg × 2 = 170 kg
Now to find the total kilos of mangoes they harvested together, we add Mang Donato's harvest to Leon's harvest:
Total harvest = Mang Donato's harvest + Leon's harvest
Total harvest = 85 kg + 170 kg = 255 kg
Therefore, Mang Donato and his brother Leon harvested a total of 255 kilograms of mangoes.