alleryବାହାର ଅଂଶକୁ ବାଦ୍ ଦେଲେ, ଏକ ତିନି-ସେଟ୍ Venn ଚାର୍ଟରେ ବୃତ୍ତଗୁଡ଼ିକ ଭିତରେ କେତେଗୋଟି ଜୋନ୍ ଥାଏ?
A6
B8
C7
D9
Answer & Solution
Correct answer: C. 7
ତିନୋଟି ସେଟ୍ ମୋଟ 8 ଟି ଜୋନ୍ ପ୍ରଦାନ କରେ; ବାହାର ଅଞ୍ଚଳକୁ ବାଦ୍ ଦେଲେ ବୃତ୍ତଗୁଡ଼ିକ ଭିତରେ 7 ଟି ରହିଥାଏ।
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