1.uncle Zhao ran around the swimming pool 6 time before he got in the water,the length and width has 30m different,he ran 1080m for total find the length and width of the pool?这是一道英语奥数题!2.Two same length electric line,the first line

Question

1.uncle Zhao ran around the swimming pool 6 time before he got in the water,the length and width has 30m different,he ran 1080m for total find the length and width of the pool?这是一道英语奥数题!
2.Two same length electric line,the first line used 46m.the second line used 19m.the second line remain 4tines of the first remained.How long are the 2 line at begin?
可否帮忙翻译并做下,

Answer 1

1 赵叔叔在入水前沿游泳池跑了六圈,水池的长宽相差30m,他一共跑了1080m,请问水池的长与宽各为多少?设宽为x ,刚长为x+30,根据题意可列6*(x+x+30)*2=1080 得,长60m,宽 30m.
2 两段相同长度的电线,第一段用掉46m,第二段用掉19m,那么第二段余下的是第一段余下的4倍,请问,这两条电线原来长度是多少?设原长为x,根据题 意可列:x-19=4(x-46) 得原长:55m.