A supply of juice lasts for 35 days, if its use is increased by 40%, then what would be the number of days less for the same amount of juice ?

10 days

Days × Consumption = Total Quantity of juice

*(if quantity of juice is constant then relation b/w Days and consumption is inverse)

40% = \(\frac{2}{5}\)

                         Earlier     :       Later

Consumption:         5         :          7

Days:                    7          :         5

                          ×5                    ⇓

                            ⇓                   ×5

                          35 (given)         ⇓

                                                25 days

days less = 35 - 25 = 10