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I failed the Power exam as well with scores of 67, 62, 75, 58. Anyone know what passing would look like?

The problem reads as follows: A 3-phase, 460-V, 25-hp induction motor draws 34A at 0.75 lagging power factor from a 480-V source. The reactive power required to correct the power factor to 0.90 lagging is most nearly? The solution finds P to be 21.7 and I'm not sure how this is calculated...