Problem Statement
By How Much 39 Erasers and a Sharpener Beat 6 Pencils The total cost of 2 pencils, 5 erasers and 7 sharpeners is Rs. 30, while 3 pencils and 5 sharpeners cost Rs. 15 more than 6 erasers. By what amount (in Rs.) does the cost of 39 erasers and 1 sharpener exceed the cost of 6 pencils? (Assume the cost of each pencil, eraser and sharpener is a natural number.)