Final answer:
A tiger will sleep roughly between 882 to 980 hours in 7 weeks.
Step-by-step explanation:
A tiger sleeps 18 to 20 hours a day. To calculate how many hours a tiger will sleep in 7 weeks, we need to multiply the average daily sleep duration by the number of days in 7 weeks.
Number of days in 7 weeks = 7 x 7 = 49 days
Average daily sleep duration = (18 + 20) / 2 = 19 hours
Total sleep duration in 7 weeks = 19 hours/day x 49 days = 931 hours
Therefore, a tiger will sleep between 882 to 980 hours in 7 weeks.