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If the letters of the word "rachit" are arranged in all possible ways and these words are written out as in a dictionary,
what is the rank of the word "rachit".

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. If a tank A can be filled within 10 hours and tank B can be filled ΒΌ in 19 hours then, what is the time taken to fill up the tank completely? 2|6|5
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arrenge the nos in format in which sum at any angle is 15