allery120 ଜଣଙ୍କର ଏକ ସର୍ବେକ୍ଷଣରେ, 70 ଜଣ ସେଓ ପସନ୍ଦ କଲେ ଏବଂ 50 ଜଣ ଆମ୍ବ ପସନ୍ଦ କଲେ; 20 ଜଣ ଉଭୟ ପସନ୍ଦ କଲେ। କେତେ ଜଣ କେବଳ ସେଓ ପସନ୍ଦ କଲେ?
A50
B60
C30
D40
Answer & Solution
Correct answer: A. 50
କେବଳ ସେଓ = 70 - 20 = 50 ଜଣ ଲୋକ ଯେଉଁମାନେ ସେଓ ବୃତ୍ତରେ ଅଛନ୍ତି କିନ୍ତୁ ଅତିବ୍ୟାପ୍ତି ବାହାରେ ଅଛନ୍ତି।
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