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Total number of males in a village = 7/12 x 1200 = 700 Total number of females in a village = 5/12 x 1200 = 500 Quantity of rice received by males = (700 X 20) = 14000 kg Quantity of rice received by females = (500 X 30) = 15000 kg Required difference = (15000 - 14000) = 1000 kg Hence, option a.
“Firefighting clothes” are made from
Of the following which one pollutes the air of abig city?
The chiefsource for the production of nitrogeneous fertilizers is :
The gas that usually causes explosions in coal mines is
Which one of the following is an example of a gel?
Bakelite is a copolymer of Phenol and
Spirit in contact with body gives cool sensation because it is:
The Bhopal tragedy was caused by the gas
Which of the following processes is used for the production of Biodiesel?
Natural rubber is the polymer of: