The price of a commodity increases from Rs 6 per kg to Rs 7.50 per kg. so that object

The price of a commodity rises from Rs. 6 per kg to Rs. 7.50 per kg. If the expenditure cannot increase, the percentage of reduction in consumption is

As price of a commodity falls from ₹ 7 per kg to ₹ 5 per kg, the total expenditure on it increases from ₹ 3,500 to ₹ 6, 250 . Find out the elasticity fo demand .

When the price of a commodity falls from Rs.10 to Rs.9 per unit, its quantity falls by 30% . Calculate price elasticity of supply.

The price of a variety of a commodity is 75 per kg and that of another is 78 per kg. The ratio in which two varieties should be mixed,so that the price is 77 per kg will be