price of a commodity decreases from ₹ 10 to ₹ 5 per unit. If the price elasticity of demand is 3 and the original quantity demanded is 40 units. Calculate the new quantity demanded.

The qunantity demanded of a commodity at a price of ₹ 8 per unit is 600 units. Its price falls by 25 per cent and the quantity demanded rises by 120 units. Calculate the price elasticity of demand . Is its demand elastic ? Give reason for your answer.

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.

Quantity demanded of a commodity rises by 6 units when its price falls by ₹1 per unit its price elasticity of demand is (-)1. if the price before change was ₹20 per unit, calculate quantity demanded at this price.

At a price of ₹ 5 per pen, the demand is 40 pens. The elasticity of demand is 0.75 and increases in price is ₹ 1 . Calculate the change in quantity of pens demanded.

What price of a commodity falls by ₹ 1 per unit , its quantitfy demanded rises by 3 units. Its price elasticity of demand is (-) 2. calculate its original quantity demanede if the price before the change was ₹ 10 per units.

The quantity demanded of a good is 1,500 units at the price of ₹ 10 per unit. Its price ealsticity of demand is (-) 1.5. calculate its quantity demanded, when its price falls to ₹ 8 per unit.

the price of a commondity is ₹ 12 per unit and its quantity demanded is 500 units. When price rises by ₹ 3 per unit, its quantity demanded falls by 150 units. Calculate its price elasticity of demand. Is demand elastic ?

The price elasticity of demand of commodity X is 1/2 of price elasticity of demand of commodity. When price of X falls by 40% , its demand rises by 20 units. Calculate price elasticity of demand of commodity X and Y, it originally 100 units of X were demanded at price of ₹ 5 per unit.