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Let S=109+108/5+107/5^2+. . .+2/(5^107)+...

Let `S=109+108/5+107/5^2+. . .+2/(5^107)+1/(5^108)`. Then the value of `(16S-(25)^-54)` is equal to _____

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2023-Question
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