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KVPY #8

Algebra Level 5

If \( 10^{9} + 2(11^1)(10^8) + 3(11^2)(10^7) + \cdots+ 10(11^9) = 10^9\cdot k\), then find the value of \(k\).

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Excel in math and science

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by Rahil Sehgal

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