Rahul's pencil is 25 cm long and Riya's pencil is 25 cm 1 mm long. Whose pencil is longer?

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• A Both are equal
• B Riya's pencil
• C Rahul's pencil
• D None of the above

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Answer: B. Riya's pencil

1 cm = 10 mm, so 25 cm 1 mm = 25.1 cm, which is more than 25 cm. Riya's pencil is longer.

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