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Re: This Is A Mathematics Braintest... by emmyojo22(m): 3:51pm On Feb 08, 2015 |
Olayemie: The girl is 19 years old The mum is 38 years old The dad is 43 |
Re: This Is A Mathematics Braintest... by ajilay(m): 3:51pm On Feb 08, 2015 |
D gurl 19 mum 38 dad 43 |
Re: This Is A Mathematics Braintest... by aycd44(m): 3:52pm On Feb 08, 2015 |
This is a simple calculation: all add up to 100. mum is A dad is A+5 child is A/2 adding all equal 100. Solving the equation gives A as 38 This implies: mum is 38 years dad is 43 years child is 19 years thank you.... |
Re: This Is A Mathematics Braintest... by AndrewChogzy(m): 3:52pm On Feb 08, 2015 |
girl's age is 19 mother's age is 38, and father's age is 43 when you add these three ages, you get 100. |
Re: This Is A Mathematics Braintest... by Fkforyou(m): 3:53pm On Feb 08, 2015 |
simple x +2x +(2x +5) = 100, solve for x and you get the girls age of which you can get the remaining unknown. 2 Likes |
Re: This Is A Mathematics Braintest... by aniagoluaustin(m): 3:54pm On Feb 08, 2015 |
MizMyColi:who send u work?? work no pay 1 Like |
Re: This Is A Mathematics Braintest... by Cholls(m): 3:54pm On Feb 08, 2015 |
my brother child-19 mother-38 father-43 total=100 years |
Re: This Is A Mathematics Braintest... by vikkysexy1: 3:54pm On Feb 08, 2015 |
very easy ridiculous ;Dvery easy ridiculous |
Re: This Is A Mathematics Braintest... by Mekzmoney(m): 3:55pm On Feb 08, 2015 |
D dad is 43yrs D mum is 38yrs D girl is 19yrs M correct... Any gift? |
Re: This Is A Mathematics Braintest... by jbaby265(f): 3:56pm On Feb 08, 2015 |
ok |
Re: This Is A Mathematics Braintest... by nickydof(m): 3:56pm On Feb 08, 2015 |
See them! If na '7 things to know before toasting a girl' everywhere for don full. Simple maths question all of them student don run go 1 side. Na God go help all these our students for nigeria. Girl is 19 Mother is 38 Father is 43 |
Re: This Is A Mathematics Braintest... by 1miccza: 3:56pm On Feb 08, 2015 |
Father 43. Mother 38. Girl. 19 |
Re: This Is A Mathematics Braintest... by PerfectlyPerfect(m): 3:57pm On Feb 08, 2015 |
xreal:awesome! this is exactly what I solved, unfortunately u beat me to posting it. kul shaa, shows there are still geniuses like me out there |
Re: This Is A Mathematics Braintest... by Nobody: 3:57pm On Feb 08, 2015 |
Let the mother's age =x Daughter's age=x/2 Father's age=x+5 The sum equals 100 Therefore, daughter's age + mother's age + father's age=100 So (x/2) + x +(x+5) = 100 Multiply through by 2, we have x + 2x + 2x + 10 = 200 Adding all x 5x + 10= 200 5x = 190 x = 190/5 x=38 Mother's age is 38 Daughter's age is19 Father's age is 43 3 Likes |
Re: This Is A Mathematics Braintest... by AndrewChogzy(m): 3:58pm On Feb 08, 2015 |
FP tins for d first time. Dedicated to all my followers on twitter. #@Chogzee#. Bck to the topic. Xreal has said it all. Gul 19, Mum 38 n d Dad 43 Total 100. |
Re: This Is A Mathematics Braintest... by bumtos(m): 4:00pm On Feb 08, 2015 |
I can't stress my brain brother, I just arrived from church. |
Re: This Is A Mathematics Braintest... by soulhighman(m): 4:00pm On Feb 08, 2015 |
Solution Let the girls age be x Mother's age is 2x Father's age is 2x+5 X+2x+(2x+5)=100 5x+5=100 X=95/5=19 Therefore, the girls age is 19 Mother's age =19*2=38 Father's age =38+5=43 2 Likes |
Re: This Is A Mathematics Braintest... by coolviv: 4:02pm On Feb 08, 2015 |
Your parents are not wasting their money on your school fees. xreal: |
Re: This Is A Mathematics Braintest... by Nobody: 4:05pm On Feb 08, 2015 |
Let her mother's age be x. Dat means d daughter's age wil be x/2 and the father's age wil b x+5. (x+x/2+x+5=100).multiplyin each term by 2,d equation becoms(2x+x+2x+10=200) ie (5x+10=200) (5x=200-10) (5x=190) therfor x=190/5=38(mother's age) daugtr's age=38/2=19.father's age=38+5=43. Kapish!! |
Re: This Is A Mathematics Braintest... by Ignatio(m): 4:06pm On Feb 08, 2015 |
Will Try it when I'm sober. |
Re: This Is A Mathematics Braintest... by holyokoto(m): 4:06pm On Feb 08, 2015 |
THE GIRL'S AGE IS = X THE MOTHER'S AGE WILL BE = 2X (TWICE THE GIRL'S AGE) THE FATHER'S AGE WILL THEN BE = (2X) + 5 IF ALL THEIR AGE = 100 THEN X + 2X + 2X + 5 = 100 5X + 5 = 100 5X = 100 - 5 5X = 95 X = 95/5 X = 19 (THE GIRL'S AGE) THE MOTHER'S AGE WILL BE 19 * 2 = 38 THE FATHER'S AGE WILL BE 38 + 5 = 43 |
Re: This Is A Mathematics Braintest... by IBROHIM: 4:07pm On Feb 08, 2015 |
Why is the girl not married? Meanwhile let's call her a woman because her mother was her age when she was born! 1 Like |
Re: This Is A Mathematics Braintest... by tseuns: 4:08pm On Feb 08, 2015 |
[quote author=Olayemie post=30535316]This is a Mathematics brain test... A girl went to school and the teacher asked how old are you? She replied I don't know bt 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 ask how old is your dad? She said I don't know but I know that if we add our ages the answer is 100 yrs... Now how old is the girl, her mum, & her dad? Stress ur brain a little. If u fail u make me ur profile pix 4 2days. Your time starts now... happy sunday everyone...[/quote Girls age 19, mothers 38, fathers 43 shikena |
Re: This Is A Mathematics Braintest... by holyokoto(m): 4:08pm On Feb 08, 2015 |
[quote author=Fkforyou post=30543013]simple x +2x +(2x +5) = 100, solve for x and you get the girls age of which you can get the remaining unknown.[/qu Open the Bracket and collect like terms |
Re: This Is A Mathematics Braintest... by sheftyxz(m): 4:09pm On Feb 08, 2015 |
Girl =19 Mother =38 Father =43 very simple arithmetic
|
Re: This Is A Mathematics Braintest... by OpraMenu(m): 4:10pm On Feb 08, 2015 |
THE GIRL'S AGE IS 19 , THE MOTHER'S AGE IS 38 AND THE FATHER'S AGE IS 43. |
Re: This Is A Mathematics Braintest... by Nobody: 4:10pm On Feb 08, 2015 |
Olayemie: Let girls age be 'g' Mum's age be 'm' Dad's age be 'd' Since the girl's age is half that the mum then it follows that: g = m/2 ====>> m = 2g...........(a) Considering the dad is 5yrs older than the mum, we also have the following: d = m + 5...........(b) From (a) we can represent (b) as: d = 2g + 5...........(c) Since their combined ages is 100yrs, it follows that d + m + g = 100..........(d) Substituting (a) and (c) in (d) we have: d + m + g = (2g + 5) + 2g + g = 100 ====>> 2g + 5 + 2g + g = 100 Collecting like terms, we have: (2g + 2g + g) + 5 = 100 ====>>. 5g + 5 = 100 ====>> 5g = 100 - 5 ====>> 5g = 95 Divide through by 5, we have: ====>>. g = 19 Substituting "g" in (a) and (c), we have: m = 2(19) = 38 d = 2(19) + 5 = 38 + 5 = 43 Hence we have the following: Girl is 19 yrs old. Mum is 38 yrs old Dad is 43 yrs old. Sorry, had to do that cause it has been a long while I worked out a mathematical problem. 3 Likes |
Re: This Is A Mathematics Braintest... by ayusco: 4:12pm On Feb 08, 2015 |
Dad is 43, Mum is 38, daughter is 19 Olayemie: |
Re: This Is A Mathematics Braintest... by AlfaSeltzer(m): 4:12pm On Feb 08, 2015 |
Her mum conceived barely legal. Ashawo mama. |
Re: This Is A Mathematics Braintest... by shaboti: 4:13pm On Feb 08, 2015 |
So 19 year old girl no sabi her mama and papa age, even her own age. Lord have mercy |
Re: This Is A Mathematics Braintest... by Nobody: 4:13pm On Feb 08, 2015 |
From mγ workings.. Let y be mother's age Girl's age is y/2 Father's age is (y+5) After solving for y, ..The girl,her mother and father are 19,38 and 43yr old respectively..
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Re: This Is A Mathematics Braintest... by Nobody: 4:17pm On Feb 08, 2015 |
Let the girls age be x and her mother's y also let her dad age be x+5, since he is 5yrs older than her mum. The girl is half her mums age, then 2x=y or x=y/2.............equ 1 their ages adds up to 100, then x+y+y+5=100........equ 2 therefore from equ 2 we have x+2y=95...........equ 3 but in equ 1, x=y/2 sub x=y/2 in equ 3 and solving, we have girl is 19, mother 38 and dad 43 respectively |
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