alleryছয় জন লোক 12 দিনে একটি মাচা তৈরি করে। এটি 8 দিনে তৈরি করতে প্রয়োজনীয় লোকসংখ্যা হলো
A8
B9
C12
D10
Answer & Solution
Correct answer: B. 9
মোট কাজ হলো 6 x 12 = 72 man-days, এবং 72/8 = 9 জন লোক।
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