allery60 ଜଣ ଲୋକଙ୍କ ଏକ ଗୋଷ୍ଠୀରେ, 35 ଜଣ ଚା', 30 ଜଣ କଫି ଏବଂ 10 ଜଣ କୌଣସିଟି ମଧ୍ୟ ପସନ୍ଦ କରନ୍ତି ନାହିଁ। କେତେ ଜଣ ଉଭୟ ପସନ୍ଦ କରନ୍ତି?
A25
B10
C15
D20
Answer & Solution
Correct answer: C. 15
50 ଜଣ ଲୋକ ଅତି କମରେ ଗୋଟିଏ ପାନୀୟ ପସନ୍ଦ କରନ୍ତି, ତେଣୁ ଉଭୟ = 35 + 30 - 50 = 15.
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