In a family the consumption of rice is 4 times that of wheat. the total consumption of the two cereals in a month is 30 kg .find the quantities of rice and wheat consumed in the family,

A bag contains 20kg of rice and another bag contains 60 kg of wheat. Find the ratio of the amount of rice to that of wheat ?

A bag contains 20kg of rice and another bag contains 60 kg of wheat. Find the ratio of the amount of rice to that of wheat? What is the ratio of rice to the total weight?

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality . Find the mean of the data {:("Monthly consumption(in units)","Number of consumers"),(65-85,4),(85-105,5),(105-125,13),(125-145,20),(145-165,14),(165-185,8),(185-205,4):}

Two farmers Ramkishan and Gurcharan Singh cultivates only three varieties of rice namely Basmati, Permal and Naura. The sale (in Rupees) of these varieties of rice by both the farmers in the month of September and October are given by the following matrices A and B. A=overset("Septermber Sales (in Rupees)")overset("Basmati Permal Naura")([("10,000","20,000","30,000"),("50,000","30,000","10,000")]){:("Ramkishan"),("Gurcharan Singh"):} B=overset("October Sales (in Rupees)")overset("Basmati Permal Naura")([("5,000","10,000","6000"),("20,000","10,000","10,000")]){:("Ramkishan"),("Gurcharan Singh"):} (i) Find the combined sales in September and October for each farmer in each variety. (ii) Find the decrease in sales from September to October. (iii) If both farmers receive 2% profit on gross sales, compute the profit for each farmer and for each variety sold in October.