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प्रश्न
Convert the following quantity as indicated:
4.2 m = cm
संख्यात्मक
उत्तर
1 m = 100 cm
∴ 4.2 m = 100 × 4.2 cm
= `100 × 42/10` cm = 420 m
∴ 4.2 m = 420 cm
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