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Q:

a, b, c, d, e, f, g are consecutive even numbers. j, k, l, m, n are consecutive odd numbers. The average of all the numbers is: 

  • 1
    $${\left(a+b+m+n\over 4 \right)}$$
  • 2
    $${\left(j+c+n+g\over 4 \right)}$$
  • 3
    $$3{\left(a+n\over 2 \right)}$$
  • 4
    $${\left(l+d\over 2 \right)}$$
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Answer : 4. "$${\left(l+d\over 2 \right)}$$ "

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