|
23. If the outer diameter of a hemisphere is 11.24 inches
and the inner diameter is 9.28 inches, the thickness
of the metal in inches is...
(A) 9.28
(B) 1.96
(C) 20.57
(D) 0.98
(E) 0.04
24. If the length of each side of a rhombus is 
what is the perimeter
of the rhombus?
(A) x + 1
(B) 
(C) 2x - 2
(D) 2x + 2
(E) x - 1
25. If a pipe can fill a tank in 20 hours and the other can
empty it in 30 hours, how many hours will it take
to fill an empty tank?
(A) 10 hrs
(B) 50 hrs
(C) 6 min
(D) 60 hrs
(E) 50 min
|
