The density of the material of a cube is measured by measuring its mass and length of its side. If the maximum error in the measurement of mass and the length are 3% and 2% respectively, the maximum error in the measurement of density is
1%
5%
7%
9%
The mass and diameter of a planet are twice those of earth. The period of oscillation of pendulum on this planet will be (If it is a second's pendulum on earth)
S1: The cooperative system of doing business is a good way of encouraging ordinary workers to work hard.; P: If the society is to be well run, it is necessary to prevent insincere officials being elected to the committee which is responsible for the running of business.; Q: They get this from experienced and professional workers who are not only familiar with the cooperative system, but also with efficient method of doing business.; R: To a large extent, many cooperative societies need advice and guidance.; S: The capital necessary to start a business venture is obtained by the workers contributions.; S6: The main object is to maintain the interest of every member of the society and to ensure that the members participate actively in the projects of society.
SQPR
PQSR
SRQP
PSRQ