When the price of tea was increased by 25%, a family reduced its consumption in such a way that expenditure on tea was only 20% more than before. If 50 kg were consumed per month before, then find the new monthly consumption.

48 Kg

                     Expenditure   =       Price       x        Consumption

            Old           100                 100         x               1

            New          120                 125         x       \(\frac{120}{125}\)  

                                     1 R  → 50 kg

             \(\frac{120}{125}\) → 50 x \(\frac{120}{125}\) = 48 kg