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One third of the total amount of chemical fertilizer was transported in the morning, and 18 tons in the afternoon, accounting for 40% of the total. How many tons are there in total?
18/(40%-1/3)
=18/(1/15)
=270 tons
A batch of chemical fertilizer transported 18 tons for the first time and 25% of the total for the second time. How many tons of this batch of chemical fertilizer?
A batch of chemical fertilizer transported 18 tons in the first time and 25% of the total in the second time. The weight ratio of the remaining chemical fertilizer to the transported chemical fertilizer is 9:11. How many tons are there in total?
To know the total weight, first calculate the percentage of 18 tons of chemical fertilizer in the total weight for the first time. From the known conditions, we know that the weight ratio of the remaining chemical fertilizer and the transported chemical fertilizer is 9:11. Then we can calculate the percentage of the transported chemical fertilizer as 11 △ (9 + 11) = 55%, and then use 55% to subtract
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