Question

please help explain questions 3 through 5 please. I really want how to slove it.

Answer 1

For number 3, we have to divide 4 hours by 2 days, so we get

$\frac{4}{2}=2$

so it is 2 hours per day

if there are 392 students, and 184 are boys. there are 208 girls. So the ratio is

$\frac{184}{208}=\frac{23}{26}$

and for number 5 we get that

$\frac{420}{660}=\frac{7}{11}$