- A77
- B72
- C16
- D66
Step-by-Step Solution
Farah's daily share = 1/28 − 1/44 = 11/308 − 7/308 = 4/308 = 1/77 of the wall, so she alone needs 77 days.
Answer: A) 77
Manoj and Farah together paint the school boundary wall in 28 days; Manoj alone needs 44 days. How many days would Farah take on her own?
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