If the lengths of two roads,x and y,add up to 850km. And x is 250km shorter than y, what is the individual length of each road

Dear Student, 

According to your question ,given length of first road=xlength of second road=yNow , x+y=850.....iy=x+250Now putting value of y in equation ix+x+250=8502x=850-2502x=600x=300 km and y=300+250          =550 km 

Regards

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