CAT Practice : Averages, Ratios, Mixtures



    Q.49: Average of ‘n’ number is t. One of the numbers ‘s’ is replaced by ‘z’ and the new average becomes u. What is the relation b/w n, t, s, u and z?


  • Correct Answer
    Choice C.

Detailed Solution

New Average, ………………..(1)

(same as (1))
= )
= )
= )

Correct Answer:

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