If $10^{20} - 83$ is written as an integer in base $10$ notation, what is the sum of digits in that integer? - The Beat The GMAT Forum

If $10^{20} - 83$ is written as an integer in base $10$ notation, what is the sum of digits in that integer?

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by M7MBA » Sun Jan 17, 2021 8:46 am

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If $10^{20} - 83$ is written as an integer in base $10$ notation, what is the sum of digits in that integer?

A. 161
B. 170
C. 179
D. 185
E. 191

Answer: B

Source: e-GMAT

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Source: Beat The GMAT — Problem Solving | Sun Jan 17, 2021 8:46 am

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