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Just consider the scores of a cricket match series is of 5 consecutive integers. If the average of the first three is t. The average of all five scores is:1. t + 12. t + 23. t + 54. t |
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Answer» Correct Answer - Option 1 : t + 1 Given: Total number of matches = 5 The average of the first 3 = t Calculations: Let the three scores be a – 1, a, a + 1. ∴ average of 3 scores ⇒ (a – 1 + a + a + 1)/3 ⇒ 3a/3 ⇒ a ∴ a = t Similarly, the average of 5 score is: ⇒ (a – 1 + a + a + 1 + a + 2 + a + 3)/5 ⇒ (5a + 5)/5 ⇒ a + 1 ⇒ t + 1 The average of the five score is t + 1. |
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