Satyababu went to a marked with RS 60 in pocket to buy some khatas and dot-pens. Witnessing the market price of khatas and dot-pens, he calcutated that if he had bought 15 khatas, then by the rest of his money, he would be able to buy 6 dot-pens only. Also, if he had bought 12 khatas, then by the rest of his money, he would be able to buy 7 dot-pens remaining RS 1 in hand. What was the market price of each khata and of each dot-pen ?

Answer

khata =RS 2, Dot-pen =RS 5;