how many years ?

Question

In a party I asked to a young woman “How old are you”?
She answered “ my age four years hence multiplied by two and from that subtracted three times my age ten years ago will give you my exact it age :

How old do you think she was?

(a) 17(b) 18(c) 19(d) 20


i could not understand this english "my age four years hence....."

is this ok ? i see something wrong here.

whats the solution ? in fact stck with that quote.

>4 years hence means 4 years from now.
this is nice.

>"......from that subtracted three times my age ten years ago....."

but what is this ?

is it (3x-10 ) OR 3*(x-10) .....ummm....which is correct ?

This wording is very difficult.....

Answer 1

say her age is X now then..4 years hence her age= X+4
then the equation which you need to solve going by the problem statement would be :

2(X+4)-3(X-10) = X
or solving this
2X+8-3X+30=X
or
38= 2X
hence X = 19
the choice c is right

Answer 2

She is (c) 19:

Here's the word problem translated into an equation:

let x = the woman's age

"my age four years hence" = x+4

(x+4)*2 - 3*(x-10) = x

multiply it out:

2x + 8 - 3x + 30 = x

now simplify:

38 - x = x

38 = 2x, therefore x = 19.

Answer 3

Definitely 19 years old. "My age four years hence" means four years from now, which means you set up the equations as:

2(x+4) - 3(x-10) = x

Solving for x gives 19. Clever woman. I'd ask her to marry you now! ;0)

Answer 4

(c) 19
4 years hence means 4 years from now

the relevant equation is 2*(x+4) - 3*(x-10)=x where x is the current age.

Answer 5

She is 19
(a+4)2-3(a-10)=a
2a+8-3a+30=a
38=2a
19=a

Answer 6

i am confused it is 17, 18, 19 or 20

Answer 7

'my age four years hence' means in 4 years in the future.

Answer 8

i think she is 20

Answer 9

wow.