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The freezer in one row will have 4 ´ 3
ice-cubes.
The number of ice-cubes fitting
in refrigerator = 4 ´
3 ´
4
= 48 cubes
(A gap of 1 inch will be left from top)
Ans : B
- Area of a circle = p r2
p
r2 = 154
r2
= 154 ´ 
= 7
Divide 154 by 7p to get 7 (Radius)
Ans : B
22. (x + a) (x - b) = x2 +
x (a - b) - ab
(x + 11) (x -7) = x2 + x (11 - 7) -
77
= x2 + 4x - 77
Ans : C
23. Thickness of the metal
Ans : D
24.Perimeter of rhombus = 4 (side )
= 4 ´ 
= 2 (x - 1 )
= 2x - 2
Ans : C
25. The part of tank filled in 1 hour by the first pipe= 
The part of the tank emptied in 1 hour by the second
pipe = 
One part of the tank filled with water when both the pipes open.
It takes 60 hours to fill the entire tank.
Ans : D
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