A farmer employed 36 labor to dig a pond in 15days, but after 10 days of work he discovered that only 50% of the work was done. How many additional labors are to be employed for completing the job in time?
Created: 6 years ago |
Updated: 2 years ago
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36 labors dig in 10 days 1/2 portion
So, 36 labors dig in 1 day = 1/(2*10) portion
So, 1 labor dig in 1 day = 1/(20*36) = 1/720 portion
After 10 days,
Remaining work(50%) = 1/2 portion and days left = 5 days
1/720 portion work done in 1 day by 1 labor
1/2 portion work done in 1 day by (720*1)/(2*1) labor
1/2 portion work done in 5 days by 720/(2*5) = 72 labors
Hence, additional labors needed to be employed is = (72 - 36) = 36
Answer:36
Md Azizur Rahman
Founder of Satt
ঐকিক নিয়ম (Unitary Methods):
একটি জিনিসের দাম, ওজন, পরিমাণ ইত্যাদি বের করে নির্দিষ্ট সংখ্যক এই জাতীয় জিনিসের দাম, ওজন, পরিমাণ ইত্যাদি বের করার নিয়মকে ঐকিক নিয়ম বলে।
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