Practicing Success
Practicing Success
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The average of the first four numbers is three times the fifth number. If the average of all the five numbers is 85.8, then the fifth number is: |
33 34 39 29 |
33 |
Sum of all five numbers = 5 x 85.5 = 427.5 Lets assume 5th number be x Average of 4 numbers = 3x Sum of 4 numbers = 12x So, x = 427.5 - 12x x = 32.88 ≅ 33 |
