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BPSC (Bihar PCS) 2018 · Question 148 of 149

The average age of 4 sisters is 7 years. If we add the age of mother, then the average increases by 6 years. Find the age of the mother.

Mental Ability

  1. A46 years
  2. B39 years
  3. C37 yearsCorrect
  4. D47 years
  5. E57 years

Answer: C. 37 years

Explanation

Average age with mother 6 years implies mother is 22; per key (C).

Source: Vision IAS

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