27 + x, 31 + x, 89 + x, 107 + x এবং 156 + x এর গড় 82 হলে,130 + x, 126 + x, 68 + x, 50 + x এবং 1 + x  এর গড় কত?

1
80
2
75
3
50
4
70

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