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Two square shaped steel plates A and B have thickness of 4 and 8 cms respectively. They are sand cast under identical conditions. Plate A takes 10 minutes to solidify. Plate B would solidify in . . . . . . . . minutes.

Two square shaped steel plates A and B have thickness of 4 and 8 cms respectively. They are sand cast under identical conditions. Plate A takes 10 minutes to solidify. Plate B would solidify in . . . . . . . . minutes. Correct Answer 40

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