A table fan, passing through two hands, is sold finally at a profit of 30% of the original cost price. If the first dealer makes a profit of 25%, then the profit made by the second dealer is:

4%

                 A                            B                        C

CP           100----25%P---------125-----x%P-------130

CP for B = 125

SP for B = 130

Profit% = (130 - 125) ×  \(\frac{100}{125}\)  = 4%