InterviewSolution
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The average of the scores obtained by Jitendra and Umar is 70, that of the scores obtained by Umar and Shyamal is 56, while the average of the scores obtained by Shyamal and Jitendra is 78. What is the average of the scores obtained by Jitendra, Umar, and Shyamal?1. 672. 683. 694. 69.5 |
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Answer» Correct Answer - Option 2 : 68 GIVEN: The average of the scores obtained by Jitendra and Umar = 70, the scores obtained by Umar and Shyamal = 56, and the average of the scores obtained by Shyamal and Jitendra = 78 FORMULA USED: Average = Sum of all Observation/Number of observation CALCULATION: Average = Sum of all Observation/Number of observation ⇒ Sum of scores of Jitendra and Umar = 70 × 2 ⇒ Sum of the scores obtained by Umar and Shyamal = 56 × 2 ⇒ Sum of the scores obtained by Shyamal and Jitendra = 78 × 2 ⇒ Average of Jitendra, Umar, and Shyamal = (70 + 56 + 78)/3 ⇒ Average of Score of Jitendra, Umar, and Shyamal = 204/3 ⇒ 68 ∴ The average Scores of Jitendra, Umar, and Shyamal is 68 |
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