Question

Janet is three years older than her sister Julie Janet's brother is 8 years older than their sister Julie the sum of all their ages is 55

Answer 1

Julie is 14.67, Janet 17.67 and Brother 22.66

Explanation:

Let Julie age be x

Janet: x+3

Brother: x+8

x+x+3+x+8=55

3x+11=55

3x=44

x=14.7