alleryA, B আৰু C-য়ে একেলগে 4 দিনত শেষ কৰে; A আৰু B-ৰ একেলগে 6 দিন প্ৰয়োজন। C-ৰ অকলে প্ৰয়োজন হ'ব
A8 দিন
B12 দিন
C10 দিন
D24 দিন
Answer & Solution
Correct answer: B. 12 দিন
C-ৰ হাৰ প্ৰতিদিনে 1/4 - 1/6 = 2/24 = 1/12, গতিকে 12 days।
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