Mathematics, 28.12.2020 18:10 heastonk9136

Ayushi has 100 pens and pencils altogether. 20% of them are pens. She buys some more pens and the percentage of the pens increases to 50%. How many pens did she buy? A. 30 B. 50 C. 60 D. 80

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Ayushi has 100 pens and pencils altogether. 20% of them are pens. She buys some more pens and the pe...

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