SOLUTION: In a village🏠, there are exactly:- • 10% more boys👔 than girls👗 • 15% more women👩 than men👨 • 20% more children 👦 than adu

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: In a village🏠, there are exactly:- • 10% more boys👔 than girls👗 • 15% more women👩 than men👨 • 20% more children 👦 than adu      Log On


   



Question 1032126: In a village🏠, there are exactly:-
• 10% more boys👔 than girls👗
• 15% more women👩 than men👨
• 20% more children 👦 than adults 👳
How many boys, girls, men, and women are there in the village???
{The population of the village is less than 6000)🎷🎇

Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
Regarding the children (boys and girls),
the number of boys is exactly 110%2F100=11%2F10 the number of girls,
and the number of boys and the number of girls should be whole numbers.
So, g= number of girls, and
%2811%2F10%29g= number of boys,
must both be whole numbers.
So would be g%2B%2811%2F10%29g=%2821%2F10%29g= number of children.

The ratio of children to adults is 120%2F100=6%2F5 ,
so the ratio of adults to children is 5%2F6 ,
and the total number of adults is
%285%2F6%29%2821%2F10%29g=%287%2F4%29g .

Among the adults (men and women),
the ratio of number of men to total number of adults is
100%2F%28100%2B115%29=100%2F215=20%2F43 , and
the ratio of number of women to total number of adults is
115%2F%28100%2B115%29=115%2F215=23%2F43 .
So,
the number of men is %2820%2F43%29%287%2F4%29g=%2835%2F43%29g , and
the number of women is %2823%2F43%29%287%2F4%29g=%2823%2A7%2F%284%2A43%29%29g .

The number of women, men, and boys, respectively, are
%2823%2A7%2F%284%2A43%29%29g , %2835%2F43%29g , and %2811%2F10%29g ,
and they must all be whole numbers,
which means that g must be a multiple of
4%2A43 , 43 , and 10 .
The least common multiple is
5%2A4%2A43=20%2A43=highlight%28860%29 .

The total population would be
.
With g=860 , the total population would be 3311 .
The next multiple of 860 , 2%2A860 ,
would make the total population 2%2A3311=6622%3E6000 .

So, the number of girls is g=highlight%28860%29 .
The number of boys is %2811%2F10%29g=%2811%2F10%29860=highlight%28946%29 .
The number of men is %2835%2F43%29g=%2835%2F43%29860=highlight%28700%29 .
The number of women is %2823%2A7%2F%284%2A43%29%29g=%2823%2A7%2F%284%2A43%29%29860=highlight%28805%29 .
NOTE:
There is often more than one way to solve a problem.
In real life, the problem solver should choose
a way that is short and comfortable for him/her.
In school, we also need to cater to the teacher's preferences.