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Average Problem in Seconds| Ratio Method #quantitativeaptitude #fastcalculation @SowndhQuants
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101 观看01:34SowndhQuants原视频发布: 2026-05-10

To solve average problems using the ratio method, calculate the difference between the overall average and each group's average, then use these differences to find the ratio of group sizes. For example, with an overall average of 35, passed candidates average of 39, and failed candidates average of 15, the differences are 4 (39-35) and 20 (35-15), giving a ratio of 1:5. This means for every 1 failed candidate, there are 5 passed candidates. With 120 total candidates, dividing into 6 parts (1+5) gives 20 failed candidates and 100 passed candidates.

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