what is the height??
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Step-by-step explanation:
suppose cat = x & tortoise = y & table = z.
=> z + x - y = 170 .......@1
=> z - x + y = 130 .......@2
=> @1 + @2
=> z+x-y + z-x+y = 170+130
=> 2z = 300
=> z = 150cm..
Table height is 150cm.
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