The problem of tree planting is the same as the problem of tree planting, but the topic is not the same The corridor of a dormitory is 15 meters long, with four colored flags. According to this calculation, the corridor of an office building is 27 meters long, how many colored flags should be inserted &It takes eight minutes to saw a piece of wood into three sections. If the time for each section is the same, how many minutes does it take to saw seven sections? &Uncle Zhang is walking on the path full of telephone poles at the same speed. It took him 22 minutes to walk from the first telephone pole to the 12th telephone pole. If he walked for 36 minutes, which telephone pole should he walk to?

The problem of tree planting is the same as the problem of tree planting, but the topic is not the same The corridor of a dormitory is 15 meters long, with four colored flags. According to this calculation, the corridor of an office building is 27 meters long, how many colored flags should be inserted &It takes eight minutes to saw a piece of wood into three sections. If the time for each section is the same, how many minutes does it take to saw seven sections? &Uncle Zhang is walking on the path full of telephone poles at the same speed. It took him 22 minutes to walk from the first telephone pole to the 12th telephone pole. If he walked for 36 minutes, which telephone pole should he walk to?

1、27÷[15÷（4+1）]-1
=27÷3-1
=9-1
=8 (surface)
2. 8 ÷ (3-1) × (7-1) = 24 minutes
3、36÷[22÷（12-1）]+1
=36÷2+1
=18+1
=19 (pieces)

Tree planting problem, solution, urgent!
On tree planting day, the students planted trees on the side of the street. The distance between every 6 trees is 15 meters. According to this calculation, what is the distance between planting 15 trees? If the distance between planting 15 trees is changed to every 6 meters, how many trees can be planted?

Distance between each two trees = 15 △ 6-1 = 15 △ 5 = 3M
The distance of planting 15 trees is 3 * (15-1) = 3 * 14 = 42 meters
.
If the distance between the planned planting number of 15 trees is changed to planting one tree every 6 meters,
That is, a total distance of 42 meters, planting a tree every 6 meters
It can be planted = 42 △ 6 + 1 = 7 + 1 = 8 trees