Olivia and Emma.alone. complete a job in 9 days and 12 days respectively. Olivia started the job and they worked on alternate days. How long did they take to complete the job?
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priyankame901:
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dis options are A. 11.50 days
B. 10.75 days
C. 10.25 days
D. 11.22 days
B. 10.75 days
C. 10.25 days
D. 11.22 days
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