word problem: Cara and Carl are sister and brother. Carl has

[megan0430]

Cara and Carl are sister and brother. Cara has six times as many brothers as sister and Carl has one more brother than twice the number of sisters. How many boys and how many girls are in the famiy?



please help.
gracias <3

 

[TchrWill]

Re: word problem: Cara and Carl are sister and brother. Carl

Cara and Carl are sister and brother. Cara has six times as many brothers as sister and Carl has one more brother than twice the number of sisters. How many boys and how many girls are in the famiy?

Does this give you any clues?

Jennifer's family has fewer than than ten children. She has the same number sisters as she has brothers, but her brother Mike has twice as many sisters as he has brothers. How many girls are in the family?

There are G girls and B boys.

Since Jennifer has the same number of sisters as she does brothers, the number of girls G = B + 1 making G - B = 1.

Since Mike has twice as many sisters as he does brothers, G = 2(B - 1) or 2B - G = 2.

Adding 2B - G = 2 and
...........-B + G = 1
............B = 3 making G = 4.

The only pair of numbers differing by 1 and totaling less than 10 that satisfy the given conditions are therefore 4 girls and 3 boys.

 

[Denis]

Cara: b b b b b b(Carl) s
Carl: b b b b b s s(Cara)

I'm from a weird family: I have 2 brothers, but my sister has 3 :shock: