["Let apples = 4u, oranges = 5u, pears = 3u. After changes: apples = 3u, oranges = 4u, pears = 3u + 10.","New ratio 3u:4u:(3u+10) = 3:4:4. Compare oranges and pears: 4u = 3u + 10.","Solve u = 10. Total at first = 12u = 120 fruits."]