Question

the price of sugar was raised by 25% by how much person should a housekeeper reduce its consumption so that there may be no change in her monthly expenditure?​

Answer 1

Answer:

monthly exps=100

after increase=125

Redn in expr:

125x100-R/i00=100

100-R=100x100/125=80

100-R=80

R = 100-80=20

Redn: 20%