 <translate> The amount that the couple would cover for the hospital bill is $128 / 2 = $64. The couple's total expenses (salary and hospital bill) is $160 + $64 = $224. So each of them should give $224 / 2 = $112 in total. Since the husband paid the entire half of the hospital bill already ($64), he still needs to pay $112 - $64 = $48.
Thus, the answer is 48. <yor> Owó tí tọkọtaya yìí máa ná lórí owó ilé ìwòsàn náà jẹ́ $128 / 2 = $64. Owó tí wọ́n ń ná (owó oṣù àti owó ilé ìwòsàn) jẹ́ $160 + $64 = $224. Nítorí náà, ẹnì kọ̀ọ̀kan wọn gbọ́dọ̀ fúnni ní $224 / 2 = $112 ní àpapọ̀. Níwọ̀n bí ọkọ náà ti san gbogbo ìdajì owó ilé ìwòsàn náà ($64), ó ṣì ní láti san $112 - $64 = $48. Nítorí náà, ìdáhùn náà ni 48. 