Tennessee Science Grade 7

Chapter 5: Animals

Working with Percentages

1
It is estimated that during the four months elephant seals spend at sea, 90 percent of their time is spent underwater. On a typical day, how much of the time between the hours of 10:00 A.M. and 4:00 P.M. does the elephant seal stay at the surface?
A)36 min
B)12 min
C)18 min
D)24 min
2
It is estimated that during the four months elephant seals spend at sea, 90 percent of their time is spent underwater. On a typical day, how much of the time between the hours of 8:00 A.M. and 10:00 A.M. does the elephant seal stay at the surface?
A)12 min
B)18 min
C)24 min
D)36 min
3
It is estimated that during the four months elephant seals spend at sea, 90 percent of their time is spent underwater. On a typical day, how much of the time between the hours of 9:00 A.M. and noon. does the elephant seal stay at the surface?
A)18 min
B)12 min
C)24 min
D)36 min
4
It is estimated that during the four months elephant seals spend at sea, 90 percent of their time is spent underwater. On a typical day, how much of the time between the hours of 11:00 A.M. and 3:00 P.M. does the elephant seal stay at the surface?
A)24 min
B)12 min
C)18 min
D)36 min
5
It is estimated that during the four months elephant seals spend at sea, 90 percent of their time is spent underwater. On a typical day, how much of the time between the hours of 6:00 P.M. and midnight. does the elephant seal stay at the surface?
A)36 min
B)12 min
C)24 min
D)18 min
6
On a typical day during those four months, how much time do elephant seals spend underwater from 10:00 A.M. and 4:00 P.M.?
A)324 min
B)216 min
C)162 min
D)108 min
7
On a typical day during those four months? how much time do elephant seals spend underwater from 8:00 A.M. and 10:00 A.M.?
A)108 min
B)216 min
C)162 min
D)324 min
8
On a typical day during those four months, how much time do elephant seals spend underwater from 9:00 A.M. and noon?
A)162 min
B)216 min
C)108 min
D)324 min
9
On a typical day during those four months, how much time do elephant seals spend underwater from 11:00 A.M. and 3:00 P.M.?
A)216 min
B)108 min
C)162 min
D)324 min
10
On a typical day during those four months, how much time do elephant seals spend underwater from 6:00 P.M. and midnight?
A)324 min
B)216 min
C)162 min
D)108 min
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