Question

修水渠,已修了二百米,正好是未修米数的五分之四.

Answer 1

1,这条水渠的总长是多少米?

2,还剩多少米的水渠没有修好?

3,还没修好的水渠站总长的几分之几?a,200+200/(4/5)

b,200/(4/5)

c,200/[200+200/(4/5)