Original price: (10+10+15+20+25) ÷ 5 =16 (yuan),

Current price: (5+5+15+25+30) ÷ 5 =16 (yuan),

(2) The tourist volume is calculated as follows:

Original price:10×1+10×1+15× 2+20× 3+25× 2 =160 (yuan).

Current price: 5×1+5×1+15× 2+25× 3+30× 2 =175 (Yuan).

Increase (175-160) ÷160×% = 9.4%.

(3) What tourists say can better reflect the overall reality.

The reason is that the number of people in each scenic spot is different.