16. The oil yield of rapeseed is 42%. How many kg of rapeseed is needed to extract 2100 kg of oil?

16. The oil yield of rapeseed is 42%. How many kg of rapeseed is needed to extract 2100 kg of oil?


2100 / 42% = 5000 kg



The oil yield of a kind of rapeseed is 42%. How many kilograms of oil can be extracted from 840 kilograms of rapeseed? If 840 kilograms of oil are to be extracted, how many kilograms of rapeseed are needed?


Oil = 840 × 42% = 352.8kg
Rapeseed = 840 △ 42% = 2000 kg