During routineconversations, the CEO of a newstart-up reports that 25% of adults between the ages of 21 and 39 will purchase her new product. Hearingthis, some investors decide to conduct alarge-scale study, hoping to estimate the proportion to within 3% with 95% confidence. How many randomly selected adults between the ages of 21 and 39 must theysurvey?

The number of adults that should be surveyed is __________.

(Round up to the nearest wholenumber.)