2077: 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
2080: Which of the following groups represents the correct order of four types of teeth in human beings?
(a) Incisors, premolars, molars, canines
(b) Incisors, canines, premolars, molars
(c) Molars, canines, incisors, premolars
(d) Canines, incisors, molars, premolars