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प्रश्न
Anvi is making bookmarker like the one shown in figure. How many bookmarker can she make from a 15 m long ribbon?
बेरीज
उत्तर
Height of one bookmaker = `10 1/2` cm
= `((10 xx 2) + 1)/2`
= `21/2` cm
Length of ribbon = 15 m = 1500 cm
∴ Number of bookmakers = `"Length of ribbon"/"Height of one bookmaker"` ......[∵ 1 m = 100 cm]
= `1500/(21/2)`
= `1500/21 xx 2`
= 142.85 ≈ 142
Hence, 142 bookmakers can be made from a 15 m long ribbon.
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