43. A cup and a saucer cost 2500 rubles, while 4 cups and 3 saucers cost 8870 rubles. Find the price of a cup and the price of a saucer.
43.4 cups and 4 saucers cost 10000 rubles, while 4 cups and 3 saucers cost 8870 rubles, therefore, the price of one saucer: $10000-8870=1130$ rubles, the price of one cup: $2500-1130=1370$ rubles.