<prompt> Child stas making tower of 9 cubes by ?18 months24 months30 months36 months  <response>: Ans. is c i.e., 30 months Bang 2 cube 8 month Tower of 2 cubes 15 month 4 cubes 18 month 6 cubes 22 month 7 cube 24 month 9 cube 30 month 10 cube 36 month 