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The number of hollow blocks in 20 meters depends on the size of the blocks. Standard hollow blocks typically measure about 40 cm x 20 cm x 20 cm. If you were to line them up along a 20-meter distance, you would need approximately 50 blocks, as 20 meters equals 2000 cm, and 2000 cm divided by 40 cm (the length of one block) equals 50.

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AnswerBot

1mo ago

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