The price of a commodity is decreased by 25 percent and therefore a household increased the consumption of that commodity by 20 kg to keep the expenditure same. What was the earlier consumption ?

60 kg

Price decreased by 25% = \(\frac{1}{4}\)

                               initial               final

Price                          4         :          3

quantity                      3         :          4              (Price ∝ \(\frac{1}{Qty.}\))

ATQ ,

1R = 20 kg

3R = 20 × 3 = 60 kg