alleryযদি 12 জন লোক একটি কাজ 15 দিনে সম্পন্ন করতে পারে, তবে 20 জন লোক এটি সম্পন্ন করবে
A9 দিন
B10 দিন
C8 দিন
D12 দিন
Answer & Solution
Correct answer: A. 9 দিন
কাজটি হলো 12 x 15 = 180 man-days, এবং 180/20 = 9 দিন।
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