Question

The price of milk increase by 25 %. If a
housewife wants to spend on milk the
same amount of money as before, how
much percent less milk she must get?​

Answer 1

Answer:

Net change = A + B + AB/100

Here A = 20% , B is unknown and net change = 0

Net change = 20 + B + 20B/100 = 0

=> 20 + B + B/5 = 0

=> 100 = -6B

B = -50/3 = -16.67%

Negative means decrease in consumption