Let's Assume the reduced price of the radio be \(Rs. x\)
According to the question, Reduced Price + Sale tax = \(Rs.\) 2568
So,
\(x + \frac{7x}{100} = 2568\)
\(= \frac{107x}{100} = 2568\)
= \(x = \frac{2568 \times 100}{107}\)
\(x = 24 \times 100 = 2400\)
So, the reduction needed in the price of the radio. = 2568 - 2400
= \(Rs. 168\)
The correct option is (C): Rs.168