In a family there are some boys and girls. All boys told that they are having equal no of brothers and sisters and girls told that they are having twice the no. of brothers than sisters. How many boys and girls present in a family?
a) 4 boys and 3 girls b) 3 boys and 4 girls c) 2 boys and 5 girls d) 5 boys and 2 girls

• let number of boys =b
  and number of girls=g;
  since each brother having equal no of brothers and sisters
  so b-1=g
  girls told that they are having twice the no. of brothers than sisters
  b=2(g-1)
  therefore 1+g=2g-2
  g=3
  and b=1+3=4
  so ans is 4boys and 3 girls
  
• 13 years agoHelpfull: Yes(110) No(6)
• a)4boys and 3girls
  
• 13 years agoHelpfull: Yes(17) No(6)
• very simple chk only opt.
  i.e 4 boys and 3 girl
• 13 years agoHelpfull: Yes(11) No(3)
• answer will be a
  
  as for a boy
  number of bro=number of sis=3
  
  and for a girl
  number of bro=4
  number of sis=2
• 13 years agoHelpfull: Yes(9) No(8)
• boys says..... bro=sis
  gals says..... bro=2*sis
  for individal boy 3 bro n 3 sis.....
  for individal gal 4 bro which r twice of sis....
  ans is 4 bro n 3 sis
  
• 11 years agoHelpfull: Yes(6) No(0)
• 4 boyz 3 gals
• 13 years agoHelpfull: Yes(5) No(2)
• proceed with ans...
  hence a) z ans....
• 13 years agoHelpfull: Yes(5) No(3)
• 4 boys and 3 girls
  
  
• 9 years agoHelpfull: Yes(1) No(1)
• 4 boys and 3 girls
• 9 years agoHelpfull: Yes(1) No(1)
• 4 boys and 3 girls ==> Each boy will have 3 other brothers and 3 sisters, each girl will have 2 other sister and 4 brothers
  
  
  Satisfies the condition, you can validate other options too if there are multiple right answer type questions
• 4 years agoHelpfull: Yes(1) No(0)
• It is also possibble to get the answer by going through options
  1.from the question we clearly found that boys must be greater that girls.so,options b,c are eliminated
  2.now from option a=>consider 1 girl ,she is having 2 sisters and 4 brothers which satisfies the question.
• 7 years agoHelpfull: Yes(0) No(0)
• A.
  
  Brother 1: I + 3 [brother+sisters]
  Sister 1 : I + [ 2 sisters+4 brothers]
• 9 Months agoHelpfull: Yes(0) No(0)