his girlfriend's 18, if that's what you want to know:
if his age now is 'b' and her age is 'g' (for boy and girl, duh!)
The man was same age as his girlfriend is now (b-g) years ago.
So her age was g-(b-g) = 2g - b
he is twice that age, so b = 2 x (2g - b) = 4g - 2b
So 3b = 4g.
So 3/4 b = g
b = 24, so g = 3/4 x 24 = 18.
2006-10-03 09:16:19
·
answer #1
·
answered by THJE 3
·
0⤊
0⤋
the man is twice the age that his girlfriend was,
the man is 24,his girlfriend was 12 when the man same age his girlfriend is now
let x = the current age of the girlfriend = the age of the man when
the girlfriend was 12
difference in age now = (24 - x)
the man was x years of age when the girl was 12
hence, difference in age then = (x-12)
since the difference in age is constant,
24 - x = x-12 >>>>>> 2 x = 36 >>>>>> x = 18
therefore, the girl is now 18, the man is 24
when the man was 18, the girl was 12
the difference in age is 6
i hope that helps
2006-10-04 05:19:43
·
answer #2
·
answered by Anonymous
·
0⤊
0⤋
The answer is 24. They are both 24 there for 12 would be the other number.
2006-10-03 07:20:07
·
answer #3
·
answered by Anonymous
·
0⤊
0⤋
Before Present
Man y 2x
G F X Y
As difference of ages is same before and present
y-x=2x-y and 2x = 24
3x-2y=0 and x = 12
So 3(12) - 2y = 0
so y = 18 so G F is 18
2006-10-03 21:59:31
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
Let's assume, that:
m - current man's age
g - current girl's age
then: (m-g) - is the difference between their ages
therefore, we can write the equation:
m= 2( g-(m-g))
m= 2( g-m+g)
m=2(2g -m)
m= 4g -2m
3m = 4g
3/4m = g
it is only proportion, so :
if man is 20, girl will be 15
if man is 24, girl 18
if man is 28, girl 21
Answer: there isn't any exact answer, we can indicate several options though from the proportion "g =3/4m" :*
2006-10-04 03:19:01
·
answer #5
·
answered by Alicja K 1
·
0⤊
0⤋
What exactly are you asking for? I'm assuming the age of his girlfriend.
m1=his age now
m2=his age then
g1=her age now
g2=her age then
m1=2*g2
m2=g1
m1-m2=g1-g2
so 2*g2-g1=g1-g2, or 3*g2=2*g1, or g1=(3/2)g2.
If he is 24, then m1=24, and g2=12. Therefore she is 18 now. When she was half of his current age, 12, he was 18, which is her age now.
2006-10-03 07:22:57
·
answer #6
·
answered by James L 5
·
1⤊
0⤋
He's 48, she's 24
2006-10-03 07:19:34
·
answer #7
·
answered by Anonymous
·
0⤊
1⤋
Omg that is so confusing. i will work it out l8er hold on!
2006-10-03 07:21:15
·
answer #8
·
answered by Anonymous
·
0⤊
0⤋
omg lol how confusing but i cant be bothered to work it out thanks all of you bored ppl who are coz i wanna no the answer
2006-10-03 07:24:44
·
answer #9
·
answered by lalalala 2
·
0⤊
0⤋
pedophile i think
2006-10-03 07:19:08
·
answer #10
·
answered by carolinatinpan 5
·
0⤊
1⤋