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ibps-rrb-os1 2018 · Question 62 of 74

The average weight of 5 students in a class is 25.8 kg. When a new student joined them, the average weight is increased by 3.9 kg. Find the approximate weight of the new student.

Average

  1. A55 kg
  2. B49 kgCorrect
  3. C42 kg
  4. D44 kg
  5. E58 kg

Answer: B. 49 kg

Explanation

49 kg Weight of new student = 25.8 + Total increase = (25.8 + 6 × 3.9) ⇒ (25.8 + 23.4) = 49.2 kg ≈ 49 kg

Source: IBPS RRB Officer Scale-I Exam 2018 (memory-based, BankAchievers) · memory-based

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