Question 420463
Let {{{a}}} = number of 3 point questions
Let {{{b}}} = number of 6 point questions
given:
{{{3a + 6b = 300}}}
{{{ a + 2b = 100 }}}
There are 2 unknowns and only 1 equation,
so I have to guess.
I'll guess {{{a = 50}}} and {{{b = 25}}}
That works, so I'll check it:
{{{3*50 + 6*25 = 300}}}
{{{ 150  + 150 = 300 }}}
OK
There are 50 3 point questions
and 25 6 point questions