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      Question

      Three positive numbers are in the 5:6: 7 ratio and the

      sum of their squares is 13,310. Find the sum of the three numbers
      A 198 Correct Answer Incorrect Answer
      B 208 Correct Answer Incorrect Answer
      C 158 Correct Answer Incorrect Answer
      D 176 Correct Answer Incorrect Answer

      Solution

      Let the number be 5x,6x,7x. So ATQ- 25x² +36x² +49x² =13310 110x² =13310 x² = 121 x = 11 now sum of numbers = 5x +6x +7x =18x 18×11=198

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