alleryদুটি নল একটি বাথটাব 8 ও 24 মিনিটে পূর্ণ করে। একত্রে নল দুটি এটি পূর্ণ করবে
A6 মিনিট
B8 মিনিট
C16 মিনিট
D5 মিনিট
Answer & Solution
Correct answer: A. 6 মিনিট
হার যোগ করলে হয় 1/8 + 1/24 = 4/24 = 1/6, সুতরাং 6 মিনিট।
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