Question

A consumer buys 20 units of good at rs 10 per unit . When the price falls by 10% the demand rises to 22 . Find the price elasticity of demand. PLZZZ ANSWER FAST ITS URGENT

Answer 1

Price               Demand
  10                   20
Falls by 10%      22
delta QD= 2 
delta QD/Q*100=10%
ED= 10/10=1
ED=1