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RRB NTPC 2021 · Question 82 of 131

Two-fifths of Narendra's salary is equal to Amit's salary and seven-ninths of Amit's salary is equal to Arun's salary. If the sum of the salaries is ?770, what are the respective salaries of Narendra, Amit, and Arun (in ?)?

  1. A450, 180, 140Correct
  2. B450, 140, 180
  3. C180, 140, 450
  4. D180, 450, 140

Answer: A. 450, 180, 140

Explanation

Narendra ×2/5 =Amit Narendra: Amit =5:2 Amit ×7/9 =Arun Amit: Arun =9:7. Ratio of Narendra Amit and Arun- = 5:2 9:7 Narendra: Amit: Arun =45:18:14. ATQ- The sum of the salary- 77=770 1=10 Narendra=45×10=450 Amit=18×10=180 Arun=14×10=140.

Source: RRB NTPC 2021 CBT 1 Previous Year Paper (3 Feb) — ixambee compilation with answer key · reliable-secondary

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