**Problem 1:** Find the successive discount of % and 40%

Solution:

Fractional value of % is

Fractional value of 40% is

8 5

5 3

8*5=40

5*3=15

The result is 8 and 3

8 is the marked price and 3 is the S.P

8-3=5

%

There is a successive discount of %

**Problem 2:** Find the successive increase of % and %

Solution:

Fraction for % is

Fraction for % is

9 10

8 9

Cancel common terms and the result is 8 and 10

4-5=1

%

There is a successive increase of 25%

**Note:** when there is a successive decrease it is discount, When there is a successive increase it is compound interest.