2221: Which dynasty was well-known for excellent village administration?
(a) Pandyas
(b) Pallavas
(c) Cholas
(d) Chalukyas
2222: Wisdom teeth normally grow during the age of:
(a) 34-----40 years
(b) 12-----15 years
(c) 17------30 years
(d) 40------45 years
2223: Half of the villagers of a certain village have their own houses. One-fifth of the villagers cultivate paddy. One-third of the villagers are literate. Four-fifth of the villagers are below twenty five. Then, which one of the following is certainly true?
(a) All the villagers who have their own houses are literate
(b) Some villagers under twenty five are literate
(c) A quarter of the villagers who have their own houses cultivate paddy
(d) Half of the villagers who cultivate paddy are literate
2224: Assertion (A) :
An iron ball floats on mercury but gets immersed in water.
Reason (R) :
The specific gravity of iron is more than that of mercury.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
2225: The trees of spruce, fir, pine, etc. are found in which of the following natural regions of the earth?
(a) Laurentian type
(b) Alpine type
(c) Taiga type
(d) Siberian type