A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
In a family, each boy has as many sisters as brothers, but each sister has only half as many sisters as brothers. How many children are there in the family?
anonymous
 4 years ago
In a family, each boy has as many sisters as brothers, but each sister has only half as many sisters as brothers. How many children are there in the family?

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@Decart show me the solution please :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ah ok I got it by fingers. But is there any mathematecal equation to solve this kind of problem? Its like a riddle.

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.0there are 7 children, 4 boys and 3 girls...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@campbell_st can you show me your solution?

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.0plenty of options...

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1i find this quite tricky..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0two equations two unknowns

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.0if you rewrite Decarts equations you have y = 1 and 0.5y  x = 1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0oh wait. im still trying to figure it out. its tricky :/

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.0for me it was trial and error knowing that there needed to be an odd number of children I knew 3 doesn't work, 5 works for the boy having equal sisters and brothers but doesn't work for the girl, so try 7 works

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1 thats probably the best way i've got a headache trying to create the equations

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1maybe i need another coffee  lol

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@cwrw238 haha, my brother too. until he left me here alone :/

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0brother = x+y sister=x+.5y

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0.5y when we took one away

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0brother is actually x+1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x+1brother has x1+y x1 being himself

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.11 + 2x = x + y where x = girls, y = boys is one equation

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1that gives x + 1 = 1 + 2x giving x=0

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i formulated an equation XD x  1 = y y  1 = x/2

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1x  1 = 0.5y is another so u have 1 + 2x = x + y x 1 = 0.5y is that right??

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@cwrw238 i'll try to solve yours & you try mine :)

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1yes that gives x = 3 y=4

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1x  1 = y y  1 = 0.5x add x  2 = 0.5x x = 4 y = 41 = 3

cwrw238
 4 years ago
Best ResponseYou've already chosen the best response.1in your equation x = boys , y = girls right? yours come out right too

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ya and yours is x = girls and y = boys,right?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thank you @cwrw238 :)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.