Tailor

From the rest of the cloth tailor could cut off either 3 m in men's suits without vest or 3.6 m with vest.

What shortest possible length could the rest of the cloth have?

How many suits
a) without a vest
b) with vest could make the tailor from the rest of the fabric wear?

Correct result:

x =  18 m
y =  6
z =  5

Solution:

$y=10\cdot x\mathrm{/}a=10\cdot 18\mathrm{/}30=6$

$z=10\cdot x\mathrm{/}b=10\cdot 18\mathrm{/}36=5$

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