<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> MSP stands for __________
If you bought a pen for <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ₹5.50 and a notebook for <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ₹20.75 and paid the shopkeeper <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ₹30, then how much money will you get back?