alleryଗୋଟିଏ ପାଇପ୍ ଏକାକୀ 15 ମିନିଟରେ ଏକ ଟାଙ୍କି ପୂର୍ଣ୍ଣ କରେ; ଏକ ଦ୍ୱିତୀୟ ପାଇପ୍ ସହିତ ଏହାକୁ 6 ମିନିଟ୍ ଲାଗେ। ଦ୍ୱିତୀୟ ପାଇପ୍ କୁ ଏକାକୀ ଲାଗିବ
A10 ମିନିଟ୍
B12 ମିନିଟ୍
C8 ମିନିଟ୍
D9 ମିନିଟ୍
Answer & Solution
Correct answer: A. 10 ମିନିଟ୍
ଦ୍ୱିତୀୟ ପାଇପ୍ ର ହାର ହେଉଛି 1/6 - 1/15 = 3/30 = 1/10, ତେଣୁ 10 ମିନିଟ୍।
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