alleryযদি 12 জন শ্ৰমিকে এটা কাম 8 দিনত সম্পূৰ্ণ কৰিব পাৰে, তেন্তে 16 জন শ্ৰমিকে ইয়াক সম্পূৰ্ণ কৰিব:
A4 দিন
B6 দিন
C9 দিন
D10 দিন
Answer & Solution
Correct answer: B. 6 দিন
1. মুঠ কাম হ'ল 12 x 8 = 96 worker-days।
2. দলৰ আকাৰ সলনি হ'লেও এই মুঠ পৰিমাণ সলনি নহয়।
3. 16 জন শ্ৰমিকৰ সৈতে প্ৰয়োজনীয় সময় হ'ল 96 / 16।
4. সেয়া হ'ল 6 days।
5. অধিক শ্ৰমিকৰ অৰ্থ হ'ল কম days, গতিকে উত্তৰটো 8-তকৈ কম হ'ব লাগিব, যিয়ে 9 আৰু 10-ক বাদ দিয়ে।
_Source: syllabus Maths, Ch 11 'Direct and Inverse Proportions', S11.3 Inverse Proportion_
Keep practising Time and Work
Browse all Time and Work questions for RRB NTPC, or explore more Quantitative Aptitude topics.
Related questions
What labor metric denotes the amount of work done by an average worker in a day?How is task time found from man-hours and worker count?If a task requires 20 man-hours, how many hours will a team of 2 workers take?A takes 12 days and B takes 24 days. A leaves 3 days before the work ends. Total time wasA does a job in 16 days, B in 8 days. A works 4 days alone, then B joins. Total time from A alone does a job in 9 days and B alone in 18 days. They earn Rs 900 together. A's share Sita does a job in 30 days. Sita and Tara together do it in 20 days. Tara alone needsA pipe alone fills a tank in 15 minutes; with a second pipe it takes 6 minutes. The second