alleryA, B ଠାରୁ ଦୁଇ ଗୁଣ ଦ୍ରୁତ। ଏକତ୍ର କାମ କରି ସେମାନେ 8 ଦିନରେ ଏକ କାମ ଶେଷ କରନ୍ତି। A କୁ ଏକାକୀ କେତେ ଦିନ ଲାଗିବ:
A10 ଦିନ
B16 ଦିନ
C24 ଦିନ
D12 ଦିନ
Answer & Solution
Correct answer: D. 12 ଦିନ
1. ଯଦି B ଦିନକୁ ଗୋଟିଏ unit କାମ କରେ, A ଦିନକୁ ଦୁଇଟି unit କରେ।
2. ଏକତ୍ର ସେମାନେ ଦିନକୁ 3 units କରନ୍ତି।
3. 8 ଦିନରେ ସେମାନେ କାମ ଶେଷ କରନ୍ତି, ତେଣୁ ସମ୍ପୂର୍ଣ୍ଣ କାମଟି ହେଉଛି 3 x 8 = 24 units।
4. A ଏକାକୀ ଦିନକୁ 2 units କରେ, ତେଣୁ A କୁ 24 / 2 = 12 ଦିନ ଆବଶ୍ୟକ।
5. ଯାଞ୍ଚ ସ୍ୱରୂପ, B କୁ ଏକାକୀ 24 ଦିନ ଆବଶ୍ୟକ ହେବ, ଯାହା A ର ସମୟର ଦୁଇ ଗୁଣ, ଠିକ୍ ଯେପରି କୁହାଯାଇଛି।
_ଉତ୍ସ: ପାଠ୍ୟକ୍ରମ Maths, ଅଧ୍ୟାୟ 11 'Direct and Inverse Proportions', S11.3 Inverse Proportion_
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