Visitors to show were charged Rs.15 each on the first day. Rs.7.50 on the second day, Rs.2.50 on the third day and total attendance on the three days were in ratio 2:5:13 respectively. The average charge per person for the whole show is?  Choose the correct choice from the following options.
A) 3	B) 4	C) 5	D) 6	E) 7
2: 5: 13   2x 5x 13x   15 7.5 2.5   30x + 37.5x + 32.5x = 100x/20x   Average 30  + 37.5  + 32.5= 
<gadget id="calculator">30  + 37.5  + 32.5</gadget>
<output>100</output>
100x/20x   Average = 5   Answer: 5100 /20= 
<gadget id="calculator">100 /20</gadget>
<output>5</output>
5   Answer: 5
<result>C</result>
Visitors to show were charged Rs.15 each on the first day. Rs.7.50 on the second day, Rs.2.50 on the third day and total attendance on the three days were in ratio 2:5:13 respectively. The average charge per person for the whole show is?