Step-by-step explanation: Given :Workers have packed 1,400 glasses in 7 boxes. To Find :If they pack 3 more boxes, how many glasses will they have packed in all? Solution: Workers packed no. of glasses in 7 boxes = 1400 Workers packed no. of glasses in 1 box = Workers packed no. of glasses in 3 boxes = = So, initially they packed 1400 glasses If they pack 3 more boxes so, the pack 600 glasses more So, The total no. of glasses have packed by workers = 1400+600 = 2000 Hence they have packed 2000 glasses in all.