It will take 15 days for team a to build a road, 12 days for team B to build it alone, six days for team a to build it first, and the rest will be jointly built by team a and team B. how many days will it take for team a and team B to build it together?

It will take 15 days for team a to build a road, 12 days for team B to build it alone, six days for team a to build it first, and the rest will be jointly built by team a and team B. how many days will it take for team a and team B to build it together?


(1-115 × 6) / (115 + 112) = (1-25) / (320 = 35 × 203 = 4 days) a: it will take four days for team a and team B to work together



Party A and Party B jointly build a 240 km long road. Party A will finish it in 10 days and Party B will finish it in 15 days. How many days will it take if the two teams cooperate?


1 / (1 / 10 + 1 / 15) = 6 (days)



Team a and team B build a 240 km long road together. Team a will complete the repair in 10 days, while team B will complete the repair in 15 days. If team a and team B work together, how many days can they complete the repair?


1 × (1 / 10 + 1 / 15) = 6 days



Team a and team B build a 240 km long road together. Team a will complete the repair in 10 days, while team B will complete the repair in 15 days. If team a and team B work together, how many days can they complete the repair?


1 ÷ (1 / 10 + 1 / 15) = 6
So if the two teams work together, it can be completed in 6 days