NDA Math Sets Relations and Functions

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Consider the following for the next three (03) items that follow:
A university awarded medals in basket ball, football and volleyball. Only x students (x<6) got medal in all the three sports and the medals went to a total of 15x students. It awarded 5x medals in basketball, (4x+15) medals in football and (x+25) medals in volleyball.
[NDA II 2022]
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