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BPSC (Bihar PCS) 2020 · Question 126 of 150

If 2n C3 : n C2 = 44 : 3 , then the value of n is ​ ​ ​ ​

Mental Ability

  1. A6Correct
  2. B3/2
  3. C11
  4. D17/2
  5. ENone of the above/More than one of the above 143. If the average of m number is n 2 and that of n numbers is m 2, then the average of m + n numbers is a. n/m b. m/n c. mn d. m - n e. None of the above/More than one of the above

Answer: A. 6

Explanation

Finding the Value of n Using Combinations Ratio This problem involves finding the value of the variable n given a specific ratio between two combination expressions: 2n C3 and n C2 . The ratio is provided as 44:3. ​ ​ ​ ​ We will use the standard combination formula and solve the resulting algebraic

Source: prepp.in

← Q125View full paper (150 questions)Q127 →

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