TCS Company undefined

(68-a)(68-b)(68-c)(68-d)(68-e)=725.wat is the value of a+b+c+d?

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TCS Other Question

55 word in the arrangement of letter PERFECT? what is summation of [3^k(28Ck)] (summation range 28 to k=0) where 28Ck is the number of ways of choosing k items from 28 items??