A small factory with 3 machines has a job of stamping out a number of pan covers. The newest machine can do the job in 3 days, another machine can do it in 4 days, and the third machine can do it in 6 days. How many days will the factory take to do the job using all three machines?
Created: 6 years ago |
Updated: 2 years ago
best des
three machines together can do in 1 day = 1/3 + 1/4 + 1/6
= (4 + 3 + 2)/12
= 9/12 part
so 9/12 part can be done in 1 day
∴1 or whole work can be done in 12/9 = 1.33 days
ans: 1.33 days
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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