A batch of goods was transported 17.5 tons in the first day, and 80% of the total amount was transported in the two days. The ratio of the quantity transported in the second day to the remaining quantity is 9:4. How many tons of this batch of goods are there in total

A batch of goods was transported 17.5 tons in the first day, and 80% of the total amount was transported in the two days. The ratio of the quantity transported in the second day to the remaining quantity is 9:4. How many tons of this batch of goods are there in total

50 tons

For a batch of goods, one fifth of the total amount was transported on the first day, 15 tons less than that on the second day. A total of 45 tons were transported in the two days. How many tons of this batch of goods

1 / 5 + 1 / 5 = 2 / 5
45-15 = 30 tons
30 △ 2 / 5 = 75 tons