Question
In the question below there are three statements
followed by three conclusions I, II and III. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts. Statements: All Pen are Marker. All Marker are Chalk. Some Chalk are Black. Conclusion: I. Some Pen are Black. II. Some Marker are Black. III. Some Pen are Chalk.Solution
All Pen are Marker (A) + All Marker are Chalk (A) тЖТ All Pen are Chalk (A) + Some Chalk are Black (I) тЖТ No conclusion. Hence conclusion I does not follow. All Marker are Chalk (A) + Some Chalk are Black (I) тЖТ No conclusion. Hence conclusion II does not follow. All Pen are Marker (A) + All Marker are Chalk (A) тЖТ All Pen are Chalk (A) тЖТ I.I. тЖТ Some Pen are Chalk (I). Hence conclusion III follows.
рддреГрд╖реНрдгрд╛ рдХреЗ рд╡реИрдХрд▓реНрдкрд┐рдХ рд╡рд┐рд▓реЛрдо рд╢рдмреНрдж рджрд┐рдП рдЧрдП рд╣реИрдВ. рд╕рд╣реА рд╡рд┐рд▓реЛрдо рд╢рдмя┐╜...
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдкреНрд░рд╢реНрди рдореЗрдВ рд╡рд┐рд╖рдо рд╢рдмреНрдж рдХрд╛ рдЪрдпрди рдХрд░реЗ ?┬а
рдЬрд┐рд╕реЗ рдЖрд╕рд╛рдиреА рд╕реЗ рд╕рдордЭрд╛ рди рдЬрд╛ рд╕рдХреЗ
' рдЯреЛрдкреА рдЙрдЫрд╛рд▓рдирд╛ ' рдореБрд╣рд╛рд╡рд░реЗ рдХрд╛ рд╕рдЯреАрдХ рдЕрд░реНрде рд╣реИ :
рдЕрдЧреНрдирд┐
рдЧреНрд░рд╛рдореНрдп рд╢рдмреНрдж рдХрд╛ рд╡рд┐рд▓реЛрдо рд╢рдмреНрдж рд╣реИ –
рдЧреВрдврд╝
рд╡рд┐рд╕реНрддрд╛рд░┬а
рджрд┐рдП рдЧрдП рд╡рд╛рдХреНрдп рдореЗрдВ рдХрд╛рд▓реЗ рд╢рдмреНрдж рдХрд╛ рд╡рд┐рд▓реЛрдо рд╢рдмреНрдж рдЬреНрдЮрд╛рдд рдХреАрдЬрд┐рдПред
рдЙ...
рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рд╡рд╛рдХреНрдп рдореЗрдВ рдХрд╛рд▓реЗ рднрд╛рдЧ рдХреЗ рд▓рд┐рдП рдЙрдкрдпреБрдХреНрдд рдПрдХ рд╢рдмреНрдж рдЪреБрдирд┐...