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Q14.A tank with internal dimension 10 cm x 10 cm x 10 cm (length x width x height) is fully filled with spherical marbles, each marble having a diameter of 1 cm. Each layer of marbles should have equal number of marbles. Water is then poured into the tank. What is the volume of water in cubic centimeters required to fill the voids? (Use π = 22/7)
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Q16.Q, R, S and T are cut-out shapes used to create a composition shown in image P. These cut-out shapes could be rotated and combined without overlapping to create the composition. These cut-out shapes can also be repeated. What is/are the correct combination(s) that can be used to create the composition shown in image P?