Short and interesting

Short and interesting

1. Processing a batch of parts, the original plan was 15 days to complete, the actual daily to do 30 more, only 10 days to complete the task, how many of these parts? 2.14 kg of soybean price is equal to the price of 8 kg of peanut, known that 1 kg of peanut is 1.2 yuan more than 1 kg of soybean, how much is the unit price of soybean and peanut? 3