Question 801791: This one is for u genius. A gal went to school & the teacher asked how old are u? She replied I don't know, bt I know that I'm half my mother's age. The teacher asked ok how old is yor mother? She said I don't know bt I know that my Dad is 5 yrs older than my mother. Teacher, how old is yor dad? She said I don't know bt I know that if we we add our ages the answer is 100 yrs... Nw how old is the gal, her mum & her dad??? Good luck
Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! I'm half my mother's age.
my Dad is 5 yrs older than my mother.
if we we add our ages the answer is 100 yrs...
how old is the gal, her mum & her dad???
:
Shouldn't be hard, we have three statements for 3 unknowns
g = .5m
d = m + 5
g + m + d = 100
Replace g with .5m, replace d with m+5
.5m + m + (m+5) = 100
2.5m = 100 - 5
2.5m = 95
m = 95/2.5
m = 38 is Mom's age
you can find g and d, I'm sure
|
|
|