alleryରବି ଏକାକୀ ଗୋଟିଏ ଖାଲ 10 ଦିନରେ ଏବଂ ସୁନୀଲ ଏକାକୀ 15 ଦିନରେ ଖୋଳନ୍ତି। ଉଭୟ ଏକାଠି କାମ କଲେ ଆବଶ୍ୟକ ହେବ
A8 ଦିନ
B6 ଦିନ
C5 ଦିନ
D7 ଦିନ
Answer & Solution
Correct answer: B. 6 ଦିନ
ଉଭୟ ଏକାଠି ପ୍ରତିଦିନ ଖାଲର 1/10 + 1/15 = 5/30 = 1/6 ଅଂଶ କାମ କରନ୍ତି, ତେଣୁ 6 ଦିନ।
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