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  9. Q81

RRB Technician (Grade I Signal + Grade III) 2024 · Question 81 of 1214

A bag contains balls numbered from 1 to 42 . One ball is drawn at random from these balls. The probability that its number is a multiple of 7 or 8 is:

best-effort

  1. A$\frac{22}{42}$
  2. B$\frac{13}{22}$
  3. C$\frac{11}{22}$
  4. D$\frac{11}{42}$Correct

Answer: D. $\frac{11}{42}$

Official answer key verified. Detailed explanation coming soon.

Source: RRB Technician Grade 1 2024 Questions: 20 Dec Shift 1 (9:00 AM - 10:30 AM) (testpaper.org compilation) · memory-based

← Q80View full paper (1214 questions)Q82 →

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