Gold inched up on Tuesday, after rising to its strongest in more than a month in the previous session, as fears about a slowing US economy prompted purchases from investors seeking an alternative investment. Gold added $2.45 at $1,545.50 an ounce by 0600 GMT after rising to as high as $1,553.30 on Monday. Silver, which normally tracks gold, was flat at $36.73 an ounce, below a record at $49.51 an ounce hit in April.