Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 1 - Chemistry: The Study of Change - Questions & Problems - Page 35: 1.106


27 years

Work Step by Step

The average adult sleeps 8 hours a day. That is one-third of a day. Therefore, a third of every lifetime will be spent sleeping. If the lifetime was 80 years: 80/3 =26.66666. Round to 27 years
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