A और B मिलकर एक कार्य 72 दिनों में करते हैं।
B और C उसे 120 दिनों में तथा A और C उसे
90 दिनों में पूरा कर सकते हैं। तद्नुसार, यदि
A, B और C तीनों मिलकर कार्य करें, तो वे
3 दिनों में कितना कार्य कर देंगे?
Answers
Answered by
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Step-by-step explanation:
A + B = 72 days
B + C = 120 days
C + A = 90 days
LCM of 72, 120, 90 is 360.
efficiency of A + B = 5
efficiency of B + C = 3
efficiency of C + A = 4
2 × (no of days taken by A + B + C )= 360 / (5+3+4)
2 × (no of days taken by A + B + C ) = 360 / 12
no of days taken by A + B + C = 30 /2
no of days taken by A + B + C = 15
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