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guajiro [1.7K]
3 years ago
12

X and Y together complete a task in 4 days, Y and Z together in 5 days. If they work independently, who will finish the work in

the least time? A. X B. Y C. Z D. Not enough information to decide
Mathematics
1 answer:
pav-90 [236]3 years ago
4 0

Answer:

c, Z

Step-by-step explanation:

x+y=4

<u>y+z=5</u>

y=4-x

4-x+z=5

<u>-</u><u>x</u><u>+</u><u>z</u><u>=</u><u>1</u>

z=1+x

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