Direction (Q. 1 - 5): Each of the following consists of unmarked figures followed by five figures marked 1,2,3,4 and 5. Select a figure from the marked figure which will continue the series established bv the unmarked figures.
Here we see that three alternate elements (namely C, O and S) move one step CW while the remaining three move one step ACW.
Elements move up and down and one element is replaced in each step. The replacement takes place in CW order. So in the next step upper-right will be replaced.
In each step the element on CW side moves to ACW (ie the last to the first) and a new element is added on the ACW side.
In subsequent steps two, three, four... elements are added and the pre-existing elements rotate by 180°.
In alternate steps, the half-shaded circle moves half-a-side and one side CW and rotates by 45° CW and 135° ACW. The halfshaded square moves half-a-side and one side ACW and rotates by 90° CW.
Direction (Q. 6 - 10): A solid cube of each side 16 cm has been painted green, blue and yellow on pair of opposite faces. It is then cut into cubical blocks of each side 4 cm. 146.
How many cubes have no face painted ?
(n - 2)3 = (4 - 2)3 = 8
How many cubes have only one face painted ?
There will be four in each side.
Hence 4 x 6 = 24.
How many cubes have only two faces painted ?
There will be two along each edge.
Hence 2 x 12 = 24.
How many cubes have three faces painted with different colors?
Thesse are the corner cubes.
How many cubes have two faces painted yellow and green and all other faces unpainted ?
2 x 4 = 8
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