RIDDLE A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

4 daughters and 3 sons

Explanation:

each brother has only half as many brothers as sisters

From the reference frame of one of the sisters, there are n sisters and n brothers.

However, from the reference frame of a parent, we see the sister did not include herself in the counting.

This means that there are n boys and n+1 girls.

From the reference frame of one of the brothers, there are n-1 brothers (since he wouldn’t count himself), and n+1 sisters. Also, each brother sees k brothers and 2k sisters.

As a result, we can combine these deductions to create the equation 2(n-1) = n+1. Solving, we find n=3.

Final There are 3 brothers and 4 sisters.

the answer:

in the first part of the story running is all that matters to squeaky. running gives her confidence and defines who she is. at the beginning of the story she says that other kids call her mercury because she runs very fast. in the text she refers to herself as "miss quicksilver".

the line that provides the best evidence that squeaky has self-confidence is

" and i continue with my breathing exercise, strolling down broadway toward the ice cream man on 145th with not a care in the world cause i am miss quicksilver herself".

correct answers:

c. they use panels.

d. they include images and words.

e. they contain gutters.