Question 65733
"How old are you?" Alex asked his cousin Gustav one day. "The day before yesterday," replied Gustav, "I was twice as old as my sister, but next year I will be three times as old as she is now." How old is Gustav? When is his birthday? On what day did this conversation take place? How old is Gustav's sister?
LET THE PRESENT AGE OF GUSTAV'S SISTER=X
PRESENT AGE OF GUSTAV=2X
NEXT YEAR AGE OF GUSTAV =2X+1 = 3X
X=1
GUSTAV'S PRESENT AGE = 2YRS.
CONVERSATION TOOK PLACE ON 1 DAYS AFTER GUSTAV'S BIRTH DAY
PRESENT AGE OF GUSTAV'S SISTER=1 YR.