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Q1.The figure shows illustrations of six metal rods which have internal or external screw thread patterns at their ends. The shaded portion in the figure shows the cross section view. What is the maximum length possible by connecting the rods? Threads cannot be connected partially.
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Q3.Figure to the left shows an unfolded pattern of a die. If four such identical dice are stacked one on top of another, as shown on the right, what is the sum of the numbers appearing on the faces which are parallel to the ground?
UCEED2020Q2·nat·Medium
The attached image shows a corridor floor that is covered with square tiles of the same size. How many tiles are covered by the green patch?
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