其它
$$37$$ sakura trees were planted along one side of the road. The trees were planted at $$4m$$ intervals. After drivers complained the road was too pink, pineapple trees were planted on the other side of the road at $$6m$$ intervals. How many pineapple trees were planted, if there were sakura and pineapple trees at both ends of the road? 
Overseas Competition->Knowledge Point->Word Problem Modules->Interval Problems
Number of sakura intervals = $$37-1 = 36$$  Length of road = $$36 \times 4 = 144m$$  Number of pineapple intervals = $$144m \div 6m = 24$$  Number of pineapple trees = $$24 + 1 = 25$$ 