Question

in a family,there are some boys and grls,all boys told that they have equal number of brothers ansd sisters and girls told that they are having twice the number of brothers than sisters.how many boys and girls presnt in a family?

Answer 1

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

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