computer class | computer course | rajasthan police, VDO, Rs-cit, कम्प्यूटर अनुदेशक #shorts

Frequency density of a class is computed by the ratio

In 2005 , from all the colleges together on overall 40 % of the students enrolled for a computer course. How many students enrolled for the course?

Mamta bought a branded computer for Rs. 50,000 from an authorised dealer but does not take a receipt. She was given oral guarantee of one year on the computer. When she used the computer at home, she detected that DVD writer was not functioning properly. What remedy can seek from the company?