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Q: If the product of two numbers is thrice of their sum, if 1st number is 12 find the 2nd number.
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Correct Answer: Option C - Let the 2nd number be x. x × 12 = (x + 12) × 3 12x = 3x + 36 9x = 36 Hence, x = 4
C. Let the 2nd number be x. x × 12 = (x + 12) × 3 12x = 3x + 36 9x = 36 Hence, x = 4

Explanations:

Let the 2nd number be x. x × 12 = (x + 12) × 3 12x = 3x + 36 9x = 36 Hence, x = 4