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Multiple choice

In a class test, Sonia scored 15 out of 20 and Neeru scored 18. If their average score is 17, how many marks did Kirti score?

  1. 18

  2. 17

  3. 16

  4. 15

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A Correct answer
Explanation

Average of three scores (15, 18, K) is 17. (15 + 18 + K) / 3 = 17. 33 + K = 51. K = 51 - 33 = 18.

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