alleryએક હોલની દરેક વ્યક્તિ ક્રિકેટ અથવા ટેનિસ પસંદ કરે છે. 70 ટકા ક્રિકેટ પસંદ કરે છે અને 55 ટકા ટેનિસ પસંદ કરે છે. કેટલા ટકા બંને પસંદ કરે છે?
A15
B20
C30
D25
Answer & Solution
Correct answer: D. 25
બંનેનું સહિયારું (ઓવરલેપ) 70 + 55 - 100 = 25 ટકા છે, કારણ કે સંયોગ (યુનિયન) એ આખો હોલ છે.
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