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I bought 5 pens, 7 pencils and 4 erasers...

I bought 5 pens, 7 pencils and 4 erasers. Rajan bought 6 pens, 8 erasers and 14 pencils for an amount which was half more than what I had paid. The percentage of total amount spent on pens by me is :

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The correct Answer is:
`62.5%`
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