A fruit vendor has certain oranges with him. He sells each orange for Rs. 5. Three customers A, B, C successively bought 25%, \(33\frac{1}{3}\%\), 50% of the oranges that are left over with the vendor each time. Later a fourth customer D bought 4 oranges. If A and D together paid Rs. 140/- to the vendor, then the percentage of oranges left with the vendor is
1
2.5
2
\(5\frac{2}{7}\)
3
\(20\frac{5}{6}\)
4
\(6\frac{1}{4}\)