The price of rice increased by 37.5%. By how much percent the consumption should be reduced so that expenditure does not change?

27\(\frac{3}{11}\)%

Price × Consumption = Expenditure

*(If expenditure remains same the price is inversely proportional to consumption)

Therefore,

37.5% = \(\frac{3}{8}\)

Price ratio:         8     :     11

Consumption:    11    :     8    ⇒ 3 (Reduced by)

Reduced percentage = \(\frac{3}{11}\) × 100% = 27\(\frac{3}{11}\)%