- A42
- B94.5
- C63
- D31.5
Step-by-Step Solution
Together they do 1/63 + 1/126 = 3/126 = 1/42 of the building per day, so they need 42 days.
Answer: A) 42
Imtiaz can whitewash a large school building in 63 days and Farooq can do it in 126 days. If they work together, how many days will the job take?
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