self Maths Puzzle

which animal has long tongue?

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self Other Question

if a^(1/a)=b^(1/b)=c^(1/c) and a^(b*c)+b^(a*c)+c^(a*b)=729 then find the value of a^(1/a) A man buy a book in Rs50 & sale it Rs60. What is the rate of profit ???