Final answer:
Jacob's household consisted of 125 people when he arrived in Egypt, as per the biblical chronology and the details provided.
Step-by-step explanation:
When Jacob arrives in Egypt, his household consists of 125 people. This total is made up of the original members of his household plus new births over the past three years, amounting to 118 (117) individuals. The composition of the household includes 31 (30) able-bodied male adults, 4 of whom are slaves, 5 helping sons, 2 additional sons, 5 small sons (2 original and 3 born in the last three years), and 1 elder. The female members are 45 able-bodied adults with 3 slaves, 4 helping daughters, 13 additional daughters, 9 small daughters (6 original and 3 born in the last three years), 1 exempt mother, and 1 elderly mother. Additionally, there are 7 new people who joined the household in the past three years including 1 able-bodied male adult, 1 additional daughter, 1 small daughter, and 4 belonging to the sujwanae hearth consisting of 1 helping son, 1 elder, and 2 able-bodied female adults.