. A, B तथा C किसी कार्य को क्रमश: 15 दिन,
20 दिन तथा 25 दिनों में पूरा कर लेते हैं। यदि
तीनों बारी-बारी से एक-एक दिन कार्य करें तो
कार्य कितने दिन में समाप्त होगा ?
पूरा
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Answer:
19 sahi 7/47 day
Step-by-step explanation:
Total work will the LCM of all that days...
LCM of 15,20 and 25 is 300
now let the total work is 300 then
A ka ek din ka kaam = (Total work)/(day) = 300/15 = 20
like that,
B ka ek din ka kaam = 300/20= 15
C ka ek din ka kaam = 300/25 =12
Ab A ek dim kaam krega uske baad B ek din Kaam karega fir C ek din kaam karega aur aise hi kram chalta rahega to..
A ka ek din ka kaam + B ka ek din ka kaam + C ka ek din ka kaam = 3 din ka kaam = 20+15+12 = 47
teeno ke teen din ke kaam ka ausat = (20+15+12)/3 = 47/3
ab poora din = 300÷ (47/3) =300*3/47
900/47 = 19 sahi 7/47 day
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