GATE Computer Science (CS) 2016 Shift 1 Solved Paper

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Question : 54 of 65
 
Marks: +1, -0
Let X be a recursive language and Y be a recursively enumerable but not recursive language.
Let W and Z be two languages such that YÌ… reduces to W, and Z reduces to XÌ… (reduction means the standard many-one reduction). Which one of the following statements is TRUE?
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