A "CD" player having a price tag of Rs. 900 is sold for rs. 729 after 2 successive discounts. if the first discount was 10%, then what was the second discount ?
Arithmetic is where numbers fly like pigeons in and out of your head
Carl Sandburg
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?