Question

1/5 of students in a school have no brothers or sisters. Of the remaining students, 40% have 1 brother or sister. What percent of all students have more than 1 brother or sister?

Answer 1

hi tutor

Answer 2

one fifth is 20%

Answer 3

via
\[\frac{1}{5}=.2=20\%\]

Answer 4

so 20% have no siblings, 40% have one leaving....

Answer 5

so 40% is the result?

Answer 6

is it equation : 20%+40%+X= 100% THEN X = 40 IS THE RESULT?

Answer 7

u still there?

Answer 8

no it's 40% of the remaining, not of the total. 1-.8*.4=.68

Answer 9

yes what is left is 40%

Answer 10

???

Answer 11

you have accounted for 60% of the total leaving 40% unaccounted for. that is the answer.

Answer 12

100 students
1/5 don't have any which means only 80 have at least one
of those 80, 40% (which is 32) have only one
80-32=68

Answer 13

80-32=48 sorry :-)