question no. 29 with full solving
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47.5....... Is wrong in the series......
Pattern is 40 + 70 + 90 + 110 + 130........
In 7.5, 20 should be added in this series
Pattern is 40 + 70 + 90 + 110 + 130........
In 7.5, 20 should be added in this series
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