F _ _ R
B R _ T H _ R S
_ N D
T H R _ _
S _ S T _ R S .
E V _ R Y
B _ Y
W _ L L
H _ V _
3
B R _ T H _ R S
_ N D
3
S _ S T _ R S .
E V _ R Y
G _ R L
W _ L L
H _ V _
4
B R _ T H _ R S
_ N D
2
( H _ L F
_ F
T H _
N _ M B _ R
_ F
B R _ T H _ R S )
S _ S T _ R S Clue
THE BOOK COSTS $2. LET THE COST BE X. WE KNOW THAT: X = 1 + X/2 SOLVING FOR X WILL GIVE 2 60 MINUTES. MANY OF YOU PROBABLY THINK THAT THEY SHOULD MULTIPLY 3 PILLS BY 30 MINUTES TO GIVE 90 MINUTES. BUT THINK OF HOW YOU TAKE THE PILLS. YOU TAKE THE FIRST PILL, AND IN A HALF-HOUR YOU TAKE THE SECOND PILL, AND THEN IN THE NEXT HALF-HOUR YOU TAKE THE THIRD PILL. SO THE NUMBER OF MINUTES THAT PASS FROM THE FIRST TO THE THIRD PILL IS 60 MINUTES FOUR BROTHERS AND THREE SISTERS. EVERY BOY WILL HAVE 3 BROTHERS AND 3 SISTERS. EVERY GIRL WILL HAVE 4 BROTHERS AND 2 (HALF OF THE NUMBER OF BROTHERS) SISTERS THE PERSON WAS BORN IN 2005 B.C. (BEFORE CHRIST). THEREFORE, HE WAS 5 YEARS OLD IN 2000 B.C, 10 IN 1995 B.C, AND 15 IN 1990 B.C