A batch of saplings were transported to afforest the campus. 82 saplings were transported for the first time and 78 saplings were transported for the second time. Four fifths of the total saplings were transported for the second time. How many saplings are there in total

A batch of saplings were transported to afforest the campus. 82 saplings were transported for the first time and 78 saplings were transported for the second time. Four fifths of the total saplings were transported for the second time. How many saplings are there in total

(twice traffic volume) 82 + 78 = 160 (trees)
(one copy) 160 △ 4 = 40
(total) 40 × 5 = 200