alleryସେଟ୍ A ରେ 30 ଜଣ ସଦସ୍ୟ ଏବଂ ସେଟ୍ B ରେ 20 ଜଣ ଅଛନ୍ତି, ଯେଉଁଥିରେ 8 ଜଣ ଉଭୟଙ୍କ ପାଇଁ ସାଧାରଣ। A କିମ୍ବା B ରେ କେତେ ଜଣ ଅଛନ୍ତି?
A42
B50
C58
D38
Answer & Solution
Correct answer: A. 42
ସଂଯୋଗ (Union) ହେଉଛି 30 + 20 - 8 = 42, କାରଣ ସାଧାରଣ ସଦସ୍ୟମାନଙ୍କୁ ଯୋଗଫଳରେ ଦୁଇଥର ଗଣନା କରାଯାଇଛି।
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