- ADay 5
- BDay 8
- CDay 9
- DDay 6
Step-by-Step Solution
If the total doubles each day and is complete after day 10, it was half complete one day earlier: the end of day 9.
Answer: C) Day 9
The total amount of a job completed so far doubles every day, and the job is finished at the end of day 10. At the end of which day was half the job done?
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