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If 3 men with 4 boys can earn Rs. 2100 in 7 days, and 11 men with 13 boys can earn Rs. 8300 in

If 3 men with 4 boys can earn Rs. 2100 in 7 days, and 11 men with 13 boys can earn Rs. 8300 in 8 days, in what time will 7 men with 9 boys earn Rs. 11000? 1. 8 days 2. 12 days 3. 16 days 4. 18 Days 5. None of these

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