What we're really trying to figure out is (33+37+41)/3
(33+37+41)=111
111/3=37
She can make 37 scarves
Difference is subtract so 400-148=252
For this question, you have to divide 29 into 4 pieces. To do this, divide 29 by 4 which is 7.25. So, each piece will be 7.25 inches long.
Hope it helps :)