Understanding LingQ’s unique read time counting system

I would like to ask clarification on how does the hours read system works.

Why does LingQ count reading time in units of 99 hundredths and then round up to the next whole unit?

Does LingQ’s time counting system accurately reflect real-world reading hours, where 1 hour equals 60 minutes? If so, how does the conversion work with the units of 99 hundredths?

Could you explain the rationale behind choosing units of 99 hundredths instead of a more conventional approach, such as counting time in minutes or seconds?

Thank you in advance for any assistance provided.

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