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Mr. Zahid 1920 মিটার দীর্ঘ একটা Road 120 দিনে তৈরী করার জন্য একটি চুক্তি করলেন। এজন্য তিনি 160 জন শ্রমিক নিয়োগ করলেন। কিন্তু 24 দিন পর দেখলেন যে, কাজের মাত্র 18 অংশ কাজ সম্পন্ন হয়েছে। এখন তিনি যদি সময়মতো কাজটি সম্পন্ন করতে চান তবে অতিরিক্ত কতজন লোক নিয়োগ করতে হবে?

 

Given time to complete the task= 120 days & Work already done = 18 Part

Now, after 24 days, remaining time = 120-24= 96 days

& After part work done, remaining task=1-18=78 Part

Now, 24 days are needed to do 18 of the work by 160 workers

1 day is needed to do of the work by 160 × 24 workers

1 day is needed to do 1 of the work by 160×24×81 workers

96 days are needed do78  of the work by 160×24×8×71×96×8=280 workers

Additional workers are needed = 280-160=120 

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