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| 1. |
Ganga and Saraawati, working separately can mow a field in 8 and 12 hours respectively. If they work in stretches of one hour alternately. Ganga beginning at 9 a.m., when will the moving be completed?1). 6 p.m.2). 6.30 p.m.3). 5 p.m.4). 5.30 p.m. |
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