alleryএকজন কৃষক 15 দিনে একটি জমি চাষ করতে পারেন। 5 দিন কাজ করার পর, এখনও প্রয়োজনীয় দিনের সংখ্যা হলো
A15 দিন
B8 দিন
C10 দিন
D12 দিন
Answer & Solution
Correct answer: C. 10 দিন
তিনি জমির 5/15 = 1/3 অংশ সম্পন্ন করেছেন, বাকি থাকে 2/3 অংশ, যা তাঁর নিজস্ব গতিতে করতে 10 দিন সময় লাগবে।
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