If the sum of two numbers is 33 and their difference is 15, the smaller number is
Let the numbers x and y.
x+y=33 …(1)
x-y=15 …(2)
x=(33+15)/2=24
y=(33-15)/2=18/2=9.
the smallest number is 9.
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Conclusion II: All plastic are tables.
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All plates are cutleries.
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Conclusions:
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