Question: 2. Heidi can proofread 26 files in an hour, while Sarah can proofread 49 files in an hour. If they have 550 files to proofread,

2. Heidi can proofread 26 files in an hour, while Sarah can proofread 49 files in an hour. If they have 550 files to proofread, how much time will it take between the two of them?A. 7.3 hoursB. 11.2 hoursC. 21.2 hoursD. 23.9 hours

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