Paragraph: A university awarded medals in basket ball, football and volleyball. Only $x$ students $(x \lt 6)$ got medal in all the three sports and the medals went to a total of $15 x$ students. It awarded $5 x$ medals in basketball, $(4 x+15)$ medals in football and $(x+$ 25) medals in volleyball.
Question: How many received medals in at least two of three sports?

• A

  $30-6 x$
• B

  $35-6 x$
• C

  $40-5 x$
• Correct answer
  D

  $40-6 x$

Hence, the correct answer is option: 'D'.