alleryপাইপ A একটি ট্যাঙ্ক 4 ঘণ্টায় পূর্ণ করে এবং পাইপ B 12 ঘণ্টায় পূর্ণ করে। উভয় পাইপ এক ঘণ্টায় কত ভগ্নাংশ পূর্ণ করে?
A1/6
B1/8
C1/16
D1/3
Answer & Solution
Correct answer: D. 1/3
এক ঘণ্টায় তারা পূর্ণ করে 1/4 + 1/12 = 3/12 + 1/12 = 4/12, যা হলো 1/3।
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