Bizmagnet:

Let mother's age be x, then the girl's age will be x/2 being the half of her mother's.
Since the father's age is 5 years greater than the mother's, his age will be x+5.
According to the girl, the sum of their ages is 100. Therefore,
girl's age (x/2 years)+ mother's age(x years) + father's age((x+5)years) = 100.
Now, x/2 + x + x+5= 100
2x + x/2 = 100-5
2x + x/2 = 95
4x + x = 190
5x = 190
x = 190/5
x= 38.
Therefore, the mother is 38 years old, the girl is 19 years old and her dad is 43 years old.

demolinka:
Na wa o...how I come dey get 16 raised to power minus 5

oloriLFC:
All those above calculations dey do my eyes somehow. Mathematics isn't just my thing, don't know why?

UyaiIncomparabl:


Too hard, dicey and confusing. All those Bleep dey confuse me.

Bizmagnet:

Let mother's age be x, then the girl's age will be x/2 being the half of her mother's.
Since the father's age is 5 years greater than the mother's, his age will be x+5.
According to the girl, the sum of their ages is 100. Therefore,
girl's age (x/2 years)+ mother's age(x years) + father's age((x+5)years) = 100.
Now, x/2 + x + x+5= 100
2x + x/2 = 100-5
2x + x/2 = 95
4x + x = 190
5x = 190
x = 190/5
x= 38.
Therefore, the mother is 38 years old, the girl is 19 years old and her dad is 43 years old.

CodeTemplar:
Let daughter's age be d
That makes mom's age 2d and dad's own 2d+5
d + 2d + ( 2d + 5 ) = 100
d + 2d + 2d +5 = 100
5d + 5 =100
5d = 100 - 5 = 95
d = 95/5 =19
daughter's age is therefore 19 and mom's is 19 X 2 = 38 and dad's is mom's own + 5 and therefore 43
19 + 38 + 43 = 100

princenaira:
No single slay mama contributed a comment on this thread simply because this one pass them.

If it were to be a sex related question, trust me we would have up to 7 pages of responses by now.

frankomale1:
A girl went to school and the teacher asked, how old are you? She replied I don't know but I know that I'm half my mother's age.

The teacher asked OK how old is your mother? She said I don't know but I know that my dad is 5 years older than my mother.

The teacher, then asked how old is your dad? She said I don't know but I know that if we add my age, my mum's age and dad's age, the answer is 100 years...

Now, how old is the girl, her mum, and her dad?

Please show your workings!

FromZeroToHero:



See the beauty of mathematics. two different methods but still arrived at the same answer.

virgoquin:
No be your fellow men dey solve the question so you which one you answer.

Solve your own too nah

Bizmagnet:

Let mother's age be x, then the girl's age will be x/2 being the half of her mother's.
Since the father's age is 5 years greater than the mother's, his age will be x+5.
According to the girl, the sum of their ages is 100. Therefore,
girl's age (x/2 years)+ mother's age(x years) + father's age((x+5)years) = 100.
Now, x/2 + x + x+5= 100
2x + x/2 = 100-5
2x + x/2 = 95
4x + x = 190
5x = 190
x = 190/5
x= 38.
Therefore, the mother is 38 years old, the girl is 19 years old and her dad is 43 years old.

UyaiIncomparabl:


Too hard, dicey and confusing. All those Bleep dey confuse me.

Bizmagnet:

Let mother's age be x, then the girl's age will be x/2 being the half of her mother's.
Since the father's age is 5 years greater than the mother's, his age will be x+5.
According to the girl, the sum of their ages is 100. Therefore,
girl's age (x/2 years)+ mother's age(x years) + father's age((x+5)years) = 100.
Now, x/2 + x + x+5= 100
2x + x/2 = 100-5
2x + x/2 = 95
4x + x = 190
5x = 190
x = 190/5
x= 38.
Therefore, the mother is 38 years old, the girl is 19 years old and her dad is 43 years old.

princenaira:
No single slay mama contributed a comment on this thread simply because this one pass them.

If it were to be a sex related question, trust me we would have up to 7 pages of responses by now.

Bizmagnet:

Let mother's age be x, then the girl's age will be x/2 being the half of her mother's.
Since the father's age is 5 years greater than the mother's, his age will be x+5.
According to the girl, the sum of their ages is 100. Therefore,
girl's age (x/2 years)+ mother's age(x years) + father's age((x+5)years) = 100.
Now, x/2 + x + x+5= 100
2x + x/2 = 100-5
2x + x/2 = 95
4x + x = 190
5x = 190
x = 190/5
x= 38.
Therefore, the mother is 38 years old, the girl is 19 years old and her dad is 43 years old.

Bizmagnet:

Let mother's age be x, then the girl's age will be x/2 being the half of her mother's.
Since the father's age is 5 years greater than the mother's, his age will be x+5.
According to the girl, the sum of their ages is 100. Therefore,
girl's age (x/2 years)+ mother's age(x years) + father's age((x+5)years) = 100.
Now, x/2 + x + x+5= 100
2x + x/2 = 100-5
2x + x/2 = 95
4x + x = 190
5x = 190
x = 190/5
x= 38.
Therefore, the mother is 38 years old, the girl is 19 years old and her dad is 43 years old.

BlackPantherCri:


The student is very rude. She doesn't have home training

thesolutions:
Let me do my own.
Since the sum of their ages is 100, but her father is 5 years older than her mother, then 100-5=95

We now have the father and mother at the same age. But the girls age is half her mothers. Let her age be x and that of her mother and father will be 2x.
The new sum of their age will be 95 since we have removed the difference in her mother and fathers age.

We now have
x+2x+2x=95
5x=95
x=95/5
x=19
The girls age is 19
The mothers age is. 2X19=38
The Fathers age is 5 above her mother's age
Which is 38+5=43


If I solve this to my teacher that year, he would give me a big zero. Don't try to impress copy and paste teachers. You will fail. You better use the method they taught you. The man ran from word problem leading to quadratic equation.

naturalwaves:

Let me give you another approach by taking it from the back this time


Let the father's age be = P
Mother's age = P-5 since the father is 5 years older than her
and daughters age = (P-5)/2 since her age is half of the mum's.
(P-5)/2 + (P-5) + P = 100
(P-5) + 2(P-5) + 2P = 200
P-5 + 2P-10 +2P =200
5P= 200 + 15
5P= 215
P=215/5
P= 43
Father = 43 years old
Mother= 43- 5(since the father is 5 years older)= 38 years old.
Daughter= 38/2 (since her age is half of the mum's)= 19 years old.
(F,M,D)= (43,38,19) is the required set of solution.

naturalwaves:
Let me give you another approach by taking it from the back this time

Let the father's age be = P Mother's age = P-5 since the father is 5 years older than her and daughters age = (P-5)/2 since her age is half of the mum's. (P-5)/2 + (P-5) + P = 100 (P-5) + 2(P-5) + 2P = 200 P-5 + 2P-10 +2P =200 5P= 200 + 15 5P= 215 P=215/5 P= 43 Father = 43 years old Mother= 43- 5(since the father is 5 years older)= 38 years old. Daughter= 38/2 (since her age is half of the mum's)= 19 years old. (F,M,D)= (43,38,19) is the required set of solution.