A Piece Of Cloth Costs Birr 200. If The Piece Was 5m Longer, And The Cost Of Each Metre Of Cloth Was Birr 2 less,the Cost Of The Piece Would Have Remained Unchanged. How Long Is The Piece And What Is Its Orginal Price Per Metre?
thank you very much
since cost is unitprice(p) times length (q),
pq = 200
(p-2)(q+5) = 200
p = 10 Birr/m
q = 20 m