allery12 জন শ্ৰমিকে এটা কাম 15 দিনত সম্পূৰ্ণ কৰে। 18 জন শ্ৰমিকক কিমান দিনৰ প্ৰয়োজন হ'ব?
A12
B20
C10
D14
Answer & Solution
Correct answer: C. 10
শ্ৰমিক আৰু দিন ব্যস্ত সমানুপাতিক, গতিকে 12 x 15 = 18 x d ৰ পৰা d = 10 পোৱা যায়।
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