The average age of five persons is 40 years while the average age of some other

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✪ Choose the correct option.

The average age of five persons is 40 years while the average age of some other 10 persons is 25 years. The average age of all the 15 persons is:

A. 27 Years
B. 32 Years
C. 37 Years
D. 30 Years

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