Answer:
[tex]\large\boxed{\boxed{\underline{\underline{\maltese{\pink{\pmb{\sf{\: Solution \rightarrow 75 \: euro }}}}}}}}[/tex]
Explanation:
[tex]\sf{Given \: details \: ,}\\\star \sf { Price \: of \: laptop = 540 \: euro}\\\star \sf {Price \: he \: sells \: it \: for = 615 \: euro}\\\\\\\sf{We \: need \: to \: find \: the \: profit \: or \: loss.}\\\\\\\sf{It \: is \: obviously \: a \: profit \: as \: the \: selling \: price \: is \: higher \: than \: the \: buying \: price.}\\\\\sf{So,}\\\sf{Profit = Price \: he \: sells \: it \: for - Price \: of \: laptop}\\\sf{Profit = 615 - 540}\\\boxed{\mathfrak {Profit = 75 \: euro}}\\\\\\[/tex]
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[tex]\sf{Hope \: it \: helps}\\\\\mathfrak{Lucazz}[/tex]
