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'.
I was taken by surprise (A)/when I came(B)/face to face with my school friend.(C)/No error(D)
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?
If a person's income increases from Rs 20 lakhs per year to Rs 24 lakhs per year and tax increases from Rs 3,50,000 to Rs 4,00,000 the marginal tax rate is