The first four days, the fertilizer transported by car a just accounted for 14% of this batch of fertilizer, while car B transported 16 tons more than 20 tons of this batch of fertilizer. According to the original work efficiency, it took another five days to transport this batch of fertilizer. How many tons of this batch of fertilizer?

The first four days, the fertilizer transported by car a just accounted for 14% of this batch of fertilizer, while car B transported 16 tons more than 20 tons of this batch of fertilizer. According to the original work efficiency, it took another five days to transport this batch of fertilizer. How many tons of this batch of fertilizer?

A: there are 720 tons of chemical fertilizer in this batch