 
<translate> Sa'ad da Haman ya tattara kwanoni goma kuma ya bar kwanoni biyu, an bar masa kwanoni goma, wato kwanoni biyu sun kai kwanoni takwas. Lokacin da ya kara wasu trays 7, jimlar adadin trays ya zama 8 trays + 7 trays = 15 trays. Tunda kowane tire yana dauke da ƙwai 36, jimlar ƙwai da za'a siyar shine ƙwai 36 / tire * 15 trays = ƙwai 540. Saboda haka, amsar ita ce 540. <eng> When Haman collected 10 trays and dropped 2 trays, he was left with 10 trays - 2 trays = 8 trays. When he added 7 more trays, the total number of trays became 8 trays + 7 trays = 15 trays. Since each tray contains 36 eggs, the total number of eggs to be sold is 36 eggs / tray * 15 trays = 540 eggs.
Therefore, the answer is 540. 