On purchase of 6 badges at roll there will not be enough 15 rub. If it buys 4 badges that from it there will be 5 rubles. how many money at roll

340
1) 15+5=20 (rubles) - cost 2 2 badges) 20:2=10 (rubles) - there is 1 badge 3) 10*4+5=45 (rubles) - all of Answer: at Katya 45 rubles
55
Answer add