Each attendee received 7/50 ounces of potato salad.
To find out how many ounces of potato salad each attendee received, we can first calculate how many ounces of potato salad were leftover after the picnic
Given that 1 2/5 tubs of potato salad were leftover and Mrs. Anderson divided the leftovers between 10 attendees, we need to divide the amount of leftover potato salad by the number of attendees.
Converting 1 2/5 to an improper fraction, we have 7/5 tubs. Dividing 7/5 by 10 gives us 7/50 tubs for each attendee.
Since 5 pounds is equal to 80 ounces, we can convert tubs to ounces by multiplying 7/50.
This gives us 7/50 ounces of potato salad for each attendee.
Therefore, each attendee received 7/50 ounces of potato salad.