Q14 When the price of a commodity falls by Rs 2 per unit, its quantity demanded increases
by 10 units. Its price elastiticy of demand is -1. Calculate its quantity demanded at the price
before change which was Rs 10 per unit. (4)
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To conclude, it can be said that to prevent air pollution every individual must stop toxic substances. People have to undertake such rules that set stringent regulations on industrial and power supply manufacturing and handling.
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