Indiana Science Grade 6

Chapter 15: Vertebrate 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)12 min
B)36 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)36 min
B)12 min
C)24 min
D)18 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)18 min
B)12 min
C)24 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)12 min
B)36 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)162 min
B)216 min
C)108 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)324 min
B)216 min
C)108 min
D)162 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)108 min
B)216 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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