alleryଗୋଟିଏ ବିଦ୍ୟାଳୟରେ, 80 ଜଣ ଛାତ୍ରଛାତ୍ରୀ କଳା, 60 ଜଣ ସଙ୍ଗୀତ ଏବଂ 30 ଜଣ ଉଭୟ ବିଷୟ ନିଅନ୍ତି। ଏହି ଦୁଇଟି ମଧ୍ୟରୁ ଅତି କମରେ ଗୋଟିଏ କେତେ ଜଣ ନିଅନ୍ତି?
A90
B100
C105
D110
Answer & Solution
Correct answer: D. 110
ଅତି କମରେ ଗୋଟିଏ = n(Art ∪ Music) = 80 + 60 - 30 = 110.
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