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ibps-rrb-oa 2017 · Question 5 of 56

The average weight of 3 men A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replaces A, then average weight of B, C, D and E becomes 79 kg. the weight of A is:

  1. A(a) 70 kg
  2. B(b) 72 kg
  3. C(c) 74 kg
  4. D(d) 80 kg
  5. E(e) None of theseCorrect

Answer: E. (e) None of these

Explanation

A+B+C = 84×3 =252 A + B + C + D = 80*4 =320 ✞✟ ✠✡☛ ☞✌✍ ✎✏✑ E=71 therefore B+C+D+E =31\ ✓✔✕ ✎✖✗✗ ✘✙ ✚✍ ✛✜✍ ✢✡ ☛ ☞✌✍ ✗✣ ✤✍☞✥☛✙

Source: IBPS RRB Office Assistant Prelims 2017 Paper (with Answers & Solutions) - Examrace · memory-based

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