Question 1002622


In a class of {{{16}}} students, 

if {{{13}}} students took a Math test, so far {{{3}}} students did not take a Math test

if {{{10}}} students took Science test, and {{{9}}} students took both tests, then there was {{{1}}} student who took  Science test only

so, if {{{13}}} students took a Math test and {{{1}}} student who took  Science test only, means {{{14}}}students took either a Math test or Science test or both

so {{{16-14=2}}} students did not take any of the tests