sentence1: In John ' s School , there are 80 boys of age 14 each , 70 boys of age 15 each & 50 boys of age 13 each and another 60 boys of age 12 each
sentence2: In John ' s School , there are 50 boys of age 14 each , 70 boys of age 15 each & 50 boys of age 13 each and another 60 boys of age 12 each