5 ∶ 8 ∶ 1Total value = Rs. 55Calculation:Ratio of rupees of 50 paisa, 25 paisa and Rs. 1 = 5/2 ∶ 8/4 ∶ 1/1 = 5 ∶ 4 ∶ 2According to the question,Rupees of 25 paisa in the beg = [4/(5 + 4 + 2)] × 55 = [(4/11) × 55 = Rs. 20∴ NUMBER of 25 paisa coins in Rs. 20 = 20 × 4 = 80