Question

Answer should come 13 1/3%

Don't give irrelevant answer

Correct answer will get 70 points

Answer 1

Answer:

13.3 %

Step-by-step explanation:

intial amount = 9000 rs

final amount = 7800 rs

% decrease = [(intial - final) ÷  intial] × 100

                    = [(9000 - 7800 ) ÷ 9000]  × 100

                    = 1200 ÷ 90

                     = 120 / 9

                     = 40 / 3

                     =  13.3%

{ 13.3 and 13 1/3 is same}

...hope it helps..

Answer 2

Answer:

13 1/3

Step-by-step explanation:

Original electricity bill = Rs. 9000

New electricity bill = Rs. 7800

Percentage decrease= [(100)Original-New]/Original

                                   = 9000-7800 (100) / 9000

                                   = 1200(100) / 9000

                                   = 120/9

                                   = 13 1/3