❌PROBLEMAS SOBRE FRACCIONES: Segundo Método Especial (Curso Completo)

MATHEMATICAL REASONING (4) Problems involving fractions of individual and collective time #fractions #fractionproblems #mathematicalreasoning 1. John can complete a project in 21 days, while Peter takes 28 days to complete the same project. If they work together, how long would it take them? 2. Three workers complete a project in 4 days. If the first one does it in 9 days and the second in 12 days, how long will it take the third? 3. A pipe fills a pool in 4 hours, and another pipe empties the same pool in 6 hours. If both are opened at the same time, how long would it take to fill the pool? 4. Andrew is three times faster than Bob and twice as slow as Caesar. If they can complete a project together in 18 days, how long would it take Caesar to complete it working alone?