In case of commodity 'B' the ratio of change in pirce `(DeltaP)` to original price (P) is (-) 0.4. if price elasticitly of demand is (-) 0.5, calculate the percentage change in quantity demanded.

The ratio of change in price (DeltaP) to original price (P) is 0.4 and elasticity of demand is (-) 1.50 . Calculate the percentage change in demand.

If ratio of Change in quantity (DeltaQ) to original quantity Q is 0.5 and elasticity of demand is (-) 1.25, calculate the percentage change in price.

The ratio of change in price (DeltaP) to original price (P) for a commodity is 0.6. If price elasticity of supply is 1.5 ,calculate the precentage change in supply .

If ratio of change in quantity (AQ) to original quantity (Q) is 0.4 and elasticity of supply is 1.25, calculate the percentage change in price.

The quantity demanded of a commodity falls by 5 units when price rises by ₹ 1 per units. Its price elasticity of demand is (-) 1.5. calculate the price before change if it this price quantity demanded was 60 units.

The demand for a good al ₹ 10 per units is 40 units. Price falls by ₹ 5. if price elasticity of demand is (-)3, calculate the new quantity demanded.

The demand for good rises by 20 percent as a result of fall in its price elasticity of demand is (-) 0.8 . Calculate the percentage fall in price.

The initial demand for a commodity is 80 units, the demand falls by 4 units due to rise in price by ₹ 10 . If price elasticity of demand is 1.5 calculate the price before change in demand.