the average age of a family of 6 members is 24 years . if the age of the youngest member is 8 years , what was the average age of the family at the birth of the youngest member ?
"present age of total members = 6 x 24 = 144 8 yrs back their ages were = 6 x 8 = 48 ages at the birth of youngest member = 144 - 48 = 96 therefore , avg age at the birth of youngest member = 96 / 6 = 16 . answer : b"
subtract(divide(subtract(multiply(6, 24), 8), const_4), 8)