The first day the coal yard transported 600 tons of coal, accounting for 16% of the total reserves. The ratio of the next day to the total reserves is 1:5. How many tons are transported the next day?

The first day the coal yard transported 600 tons of coal, accounting for 16% of the total reserves. The ratio of the next day to the total reserves is 1:5. How many tons are transported the next day?

A: 720 tons the next day

For a pile of coal, 600 tons are transported in the first day, which accounts for one sixth of the pile of coal. The coal transported in the second day is one third of the pile of coal. How many tons are transported in the second day

1、1/6×＝600 ×＝3600 3600÷3＝1200

A fleet transports a pile of coal. On the first day, it transports 1 / 6 of the pile of coal. On the second day, it transports 40 tons more than on the first day. At this time, the coal already transported is the same as the rest
A fleet transports a pile of coal. On the first day, it transports 1 / 6 of the pile of coal. On the second day, it transports 40 tons more than on the first day. At this time, the ratio of the transported coal to the remaining tons is 7:5. How many tons of coal is there?
Not equations, but processes

7 / (7 + 5) = 7 / 12
common
40÷（7/12-1/6-1/6）
=40÷1/4
=160 tons
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