In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
The professor recently describes 1500 tests (1)/ in which blind people passed with greater (2)/ ease than those who could see! (3)/ No error (4)
If price of an article decreases from Rs 600 to Rs 500, when quantity demanded increases from 10000 units to 12000 units. Find point elasticity of demand?