JoJoHunted7019 JoJoHunted7019

05-04-2024
Mathematics

contestada

If the ratio of the efficiencies of machines X and Y is 5:4, then the total work done by X and Y in 10 days is 90 units. What is the work done by machine X in 10 days?
a) 50 units
b) 60 units
c) 70 units
d) 80 units

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