How many meaningful English words can be formed with the letters 'ATN' using each letter only once in each words?
A1
B2
C3
D4
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51 കുട്ടികളുള്ള ഒരു ക്ലാസ്സിലെ 21 -ാം റാങ്കുകാരനാണ് രവി എങ്കിൽ പിന്നിൽ നിന്ന് എത്രാമത്തെ സ്ഥാനത്താണ് രവി ?
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