Five marks exercise problems III — task. Mathematics State Board, Class 10.

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Rekha has

$15$ square colour papers of sizes

$10$

$cm$ ,

$11$

$cm$ ,

$12$

$cm$ , …

$24$

$cm$ . How much area can be decorated with these colour papers?

Answer:

Area can be decoreated

$=$

$cm^2$

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