In the mrna codons, uuu encodes for phenylalanine (phe), agu encodes for serine (ser), ugg encodes for tryptophan (try), and cga encodes for arginine (arg). The dna base sequence to encode for a protein try-arg-ser would be.

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?