engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) Quantitative Aptitude Time and Work Work Efficiency
Aarti and Bharti take 30 days and 42 days respectively to complete a work individually. Aarti starts working alone and then a few days later Bharti joins her. In all, they take 20 days to complete the work. After how many days did Bharti join the work?
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4
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7
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5
4
6