- #1
desmond iking
- 284
- 2
Homework Statement
Ten Students sit in a row. Find the probability of 6 boys and 4 girls can be arranged if (i) all girls are side by side?
(ii) all girls are separated by boys
Homework Equations
The Attempt at a Solution
my working for part i is 4!x7!=120960
for part ii, why can't i just take 10! -120960=3507840 ? the ans given is 604800