allery45 ଜଣ ଛାତ୍ରଛାତ୍ରୀ ଥିବା ଏକ ଶ୍ରେଣୀରେ, 25 ଜଣ ଇତିହାସ ପଢ଼ନ୍ତି, 20 ଜଣ ଭୂଗୋଳ ପଢ଼ନ୍ତି ଏବଂ 5 ଜଣ କୌଣସିଟି ପଢ଼ନ୍ତି ନାହିଁ। କେତେ ଜଣ ଉଭୟ ପଢ଼ନ୍ତି?
A15
B10
C5
D0
Answer & Solution
Correct answer: C. 5
Union = 45 - 5 = 40. ଉଭୟ = 25 + 20 - 40 = 5.
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