A person buys books at Rs. 300 for 5 and sells them at Rs.740. How many books must he sell in order to earn profit of Rs. 3,520?
C.P. of 5 books = Rs.300 S.P. of 5 books = Rs. 740 ∴ Profit earned by selling 5 books = Rs. 440 Rs. 440 is earned by selling 5 books. ∴ Rs.3, 520 will be earned by selling `(5xx3520)/440` = 40 books.
Which of the following is an example of a symbiotic bacterium commonly found in root nodules?
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Male and female plants of spinach are identified on the basis of
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Popularly known as Kisan Diwas, the National Farmers' Day is a national occasion observed on ______________ every year. National Farmer's Day is celebra...
Specific yield is also known as
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