 
<translate> Cristian ya ci 3 / 4 * 80 = 60 farin kukis daga kwalban, 3 / 4 na jimlar adadin farin kukis a cikin kwalbar kukis. Adadin fararen kukis da suka rage a cikin kwalbar kuki shine 80 - 60 = 20. A cikin kwalbarsa ta kukis, Cristian kuma yana da 80 + 50 = 130 baƙar fata. Ya ci 1 / 2 * 130 = 65 baƙar fata cookies daga kuki jar. Ya rage tare da 130 - 65 = 65 baki cookies bayan cin rabin su. Gabaɗaya, Cristian yana da 65 + 20 = 85 kukis da suka rage a cikin kwalba. Saboda haka, amsar ita ce 85. <eng> Cristian eats 3 / 4 * 80 = 60 white cookies from the jar, 3 / 4 of the total number of white cookies in the cookie jar. The number of white cookies remaining in the cookie jar is 80 - 60 = 20. In his cookie jar, Cristian also has 80 + 50 = 130 black cookies. He eats 1 / 2 * 130 = 65 black cookies from the cookie jar. He remains with 130 - 65 = 65 black cookies after eating half of them. In total, Cristian has 65 + 20 = 85 cookies remaining in the jar.
Thus, the answer is 85. 