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the equation 3x+5y=k has exactly 4 positive integral solutions and k is the largest number for this is possible. find the value of k. (ans 75) please explain the method

the equation 3x+5y=k has exactly 4 positive integral solutions and k is the largest number for this is possible. find the value of k.
 
(ans 75)
please explain the method

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

Let the value of x and y be 10 then k =80 which is greater than the answer

kindly check and repost

Regards

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