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General Everyday Science and Ability QUESTION #247
Question 1
What are total combinations of 09 things taken 03 at a time?
  • 18
  • 27
  • 48
  • 84✔️
Correct Answer Explanation
Using the formula nCr=n![cites​tart]/(r!(n−r)!), 9C3=(9×8×7)/(3×2×1)=84.+1