Let the cost prices of the articles sold at profit and sold at loss be ₹ p and ₹ 1 respectively.
`p+(20)/(100)p=150 implies125`
`1-(25)/(100)1=120 implies1=160`
`:.` Total selling price =₹ 270
Total cost price `=₹ 285 gt "Total selling price"`
`:.` A loss was made on the overall transation
`:.` Overall loss =₹ 15
`:.` Overall loss percentage `=(15)/(285)(100%)=(100)/(19)%~5.3%`