TCS Company Numerical Ability Number System

The maximum power of 143 in 87!?

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TCS Other Question

P,Q,R,S are distinct number from 1 to 12.then what is the minimum possible value of this expression:
(p/Q)+(R/S)
Find the rank of the word GOOGLE if all the words which can be formed by permuting letters of this word without repitition are arranged in dictionary in alphabetical order???
ans-88