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'. On Sundays (1)/ I prefer reading (2)/ than going out visiting my friends. (3)/ No Error (4)
Calculate a country's GDP if for the year, consumer spending is $900 million, government spending is $250 million, investment by businesses is $180 million, exports are $85 million and imports are $100 million.
Two particles with charges q1 and q2 are kept at a certain distance to exert force F on each other. If the distance is reduced to one-fifth, then the force between them is