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The average marks obtained by Raghav in 15 tests are 25. Zubeida has maintained an average of 23 so far but has taken only 10 of the tests. If each test is out of 30, how much must Zubeida score on average in the remaining 5 tests to still have a chance to match Raghav’s performance?

The average marks obtained by Raghav in 15 tests are 25. Zubeida has maintained an average of 23 so far but has taken only 10 of the tests. If each test is out of 30, how much must Zubeida score on average in the remaining 5 tests to still have a chance to match Raghav’s performance? Correct Answer 29

Let Zubeida must score x.

⇒ 15 × 25 = 23 × 10 + 5x

⇒ x = 29

∴ Zubeida must score 29 on average in the remaining 5 tests.

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