Question 442391
this is pretty tough to interpret.
The way I read it is that 45% of the class passed
the 1st test, and some of that 45% also passed the 2nd test.
The 30% that passed both tests is included within the 45% that
passed the 1st test.
So the problem is asking "30 is what percent of 45?"
{{{ x/100 = 30/45 }}}
{{{ x /100 = 2/3 }}}
{{{ 3x = 200 }}}
{{{ x = 66.67 }}}
66.67% of those who passed 1st test also passed 2nd test
Some one else might read this differently.
I'd get another opinion, too.