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How many positive \(5\)-digit integers have the odd sum of their digits?

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by VJesus12 » Wed Jun 02, 2021 10:28 am

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How many positive \(5\)-digit integers have the odd sum of their digits?

A. \(9\cdot 10^2\)
B. \(9\cdot 10^3\)
C. \(10^4\)
D. \(45\cdot 10^3\)
E. \(9\cdot 10^4\)

Answer: D

Source: GMAT Club Tests
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