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? [UPSC 2010 (CS-P)]
1) All the villagers who have their own houses are literate.
2) Some villagers under twenty five are literate.
3) A quarter of the villagers who have their own houses cultivate paddy.
4) Half of the villagers who cultivate paddy are literate.

• Under 25 = 80%
  literate = 33%
  
  Option B.
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