The average of 5 numbers is 65. The average of the first two numbers is 81 and the average of the last two numbers is 38. What is the third number ?

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The average of 5 numbers is 65. The average of the first two numbers is 81 and the average of the last two numbers is 38. What is the third number ?

A63

B 87

C99

DCannot be determined

Nithin K ? Apr 30 '2017 at 14:42

Answer is 87

Explanation:

The third number = 5 × 65 - 2 × 81 - 2 × 38

= 325 - 162 - 76

= 87

 

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Answer is 87 Explanation: The third number = 5 × 65 - 2 × 81 - 2 × 38 = 325 - 162 - 76 = 87   Nithin K ? answered Apr 30 '2017 at 14:42 All Comments

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