alleryদুজন শ্রমিকের কর্মদক্ষতার অনুপাত 3:2। প্রথম জনের একার 20 দিন প্রয়োজন। দ্বিতীয় জনের একার প্রয়োজন হবে
A25 দিন
B28 দিন
C40 দিন
D30 দিন
Answer & Solution
Correct answer: D. 30 দিন
সময় কর্মদক্ষতার সাথে ব্যস্তানুপাতিক, তাই 20 x 3/2 = 30 দিন।
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