Question 1136061




These are the Prime between {{{1}}} and {{{200}}}:

{{{2}}}, {{{3}}}, {{{5}}},{{{ 7}}} ,{{{ 11}}},

{{{13}}}, {{{17}}}, {{{19}}}, {{{23}}}, {{{29}}},

{{{31}}},{{{ 37}}}, {{{41}}}, {{{43}}}, {{{47}}},

{{{53}}}, {{{59}}}, {{{61}}}, {{{67}}}, {{{71}}},

{{{73}}}, {{{79}}}, {{{83}}},{{{ 89}}}, {{{97}}},

{{{101}}}, {{{103}}}, {{{107}}},{{{ 109}}}, {{{113}}},

{{{127}}}, {{{131}}}, {{{137}}}, {{{139}}}, {{{149}}},

{{{151}}}, {{{highlight(157)}}}, {{{163}}}, {{{167}}}, {{{173}}},

{{{179}}}, {{{181}}}, {{{191}}}, 

{{{193}}},{{{ 197}}}, {{{199}}}


notice that the {{{sum }}} of the people who pass and those who fail is a prime number:
 


A) {{{82:83}}}->{{{82+83=165}}}->not a prime
B) {{{75:78}}}->{{{75+78= 153}}}->not a prime
C) {{{76:81}}}->{{{76+81=highlight(157)}}}->{{{IS}}} a prime
D) {{{91:78}}} ->{{{91+78=169}}}->not a prime


=> your answer is: C) {{{76:81}}}