Question 935281
1. 
{{{57-46=11}}}% => answer is E)

2.

P(A&#8745;B) = P(A) + P(B) - P(AUB) <------- Identity that you should know

{{{46}}}% = {{{57}}}% + {{{80}}}% - {{{P(AUB)}}}

{{{P(AUB)}}} = {{{57}}}%+{{{80}}}% - {{{46}}}% 

{{{P(AUB)}}}= {{{137}}}% - {{{46}}}% 

{{{P(AUB)}}}= {{{91}}}%...... so, answer is C){{{91}}}%