the total height of a dozen buttons arranged one above another was found to be 3cm 6mm . what is the thickness of one button
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Answer:
One dozen coins = 12 coins
Total height of 12 coins = 3 cm 6 mm
= 3 × 10 mm + 6 mm
= 36 mm
Therefore, thickness of one coin = 36 ÷ 12
= 3 mm
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