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the average of 11 result is 50. If the average of first-six results is 49 and that of last six is 52, find the sixth result​

By Liliana

the average of 11 result is 50. If the average of first-six results is 49 and that of last six is 52, find the sixth result​

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Liliana


10. Find the first terms and common difference of an AP, whose t8
=3 and
t12=52
​

Ms. Johnson weighs her grades. Tests are worth 75%, quizzes are worth 20% and homework is 5%. Juan’s test average is 76, his quiz

1 thought on “the average of 11 result is 50. If the average of first-six results is 49 and that of last six is 52, find the sixth result​”

  1. Answer:

    total of 11 results is=11×50=550

    total of first 6 results =6×49=294

    total of last 6 results =6×52=312

    6th results is =294+312-550=56

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