If X is a subset of A*B and n(A*B)=9 where X={ (x,y) : 4x+y=10,where x and y are whole numbers} , then what will be the representation of the set A?

Dear Student ,
This must be a multiple choice question . 
And '*' must denotes binary operation.
​​​So, the sollution is as follow :-

Thus , A*B must include {(0,10),(2,2),(1,6)} .
        So, A must include {0,1,2,6,10}.

=> The option with values { 0,1,2,6,10 } in it must be the answer .

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