Question

The price of petrol rose by 20%. By what percent should a motorist reduce his consumption so that his expenditure on petrol does not increase?

Answer 1

%age reduction = 20*100/(100+20) = 20*100/120 = 100/6 = 16(2/3)% ANSWER

Answer 2

Answer:

50/3%

Step-by-step explanation:

The formula of reduction= (20x100/100+20)
                                         =(20x100/120)
                                         = Simplify
                                          = 50/3%