Question 413465
The problem is saying that 16 adults weigh the same as 44 children,
and either would equal a fully loaded bus.
There are 4 adults on the bus, and that would be {{{4/16 = 1/4}}} of
a fully loaded bus.
There are 12 children on the bus, and that would be {{{12/44}}}
of a fully loaded bus.
I can add these fractions to get {{{11/44 + 12/44 = 23/44}}} of a
fully loaded bus
This is actually the same as if there were 23 children on the bus,
so the bus can carry {{{44 - 23 = 21}}} more children.