alleryଜଣେ ପୁରୁଷ 3 ଜଣ ବାଳକଙ୍କ ସମାନ କାମ କରନ୍ତି। ଦୁଇ ଜଣ ପୁରୁଷ ଏବଂ 6 ଜଣ ବାଳକ 9 ଦିନରେ ଏକ କାମ ଶେଷ କରନ୍ତି। 12 ଜଣ ବାଳକ କେତେ ସମୟ ନେବେ?
A6 ଦିନ
B9 ଦିନ
C18 ଦିନ
D12 ଦିନ
Answer & Solution
Correct answer: B. 9 ଦିନ
ଦୁଇ ଜଣ ପୁରୁଷ 6 ଜଣ ବାଳକଙ୍କ ସହିତ ସମାନ, ତେଣୁ ସମ୍ପୂର୍ଣ୍ଣ ଦଳ 12 ଜଣ ବାଳକଙ୍କ ସହ ସମାନ, ତେଣୁ ସେମାନଙ୍କୁ ମଧ୍ୟ 9 ଦିନ ଆବଶ୍ୟକ।
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