 
<translate> Iyalin Andrew sun ƙunshi mutane 1 + 2 + 2 = 5. Kowane ɗayan dangin Andrew yana amfani da abin rufe fuska 100 / 5 = 20 masks. Tare da kowa yana sanya abin rufe fuska kowane kwana 4, abin rufe fuska zai wuce 20 masks * 4 days / mask = kwanaki 80. Amsar ƙarshe: 80. <eng> Andrew's family consists of 1 + 2 + 2 = 5 people. Each of Andrew's family members uses 100 masks / 5 = 20 masks. With everyone wearing a mask every 4 days, the masks will last 20 masks * 4 days / mask = 80 days. The final answer: 80. 