Total Weight of the vegetable = 10.000 kg
Weight of the onions = 3 kg 500 g = 3.500 kg
Weight of the tomatoes = 2 kg 75 g = 2.075 kg
Weight of potatoes = Total weight of vegetables bought
(Weight of onions + weight of tomatoes )
= 10000 – ( 3500 + 2075)
Hence, the weight of the potatoes was 4425 kg.