How to buy six products from 20rs? September 18, 2017 by jspkbsp svkv 3 Comments How to buy six products from 20Rs. without using Paisa & without repeating numbers ? Click here to See SolutionHide It’s not possible. The sum of the 6 smallest digits(1,2,3,4,5,6 is 21) is greater then 20 Rs 6 , Rs5 , Rs4, Rs3, Rs 2, and one item should be free Rs0 (free with other 4 items) 0+2+3+4+5+6=20