Math, asked by hardikshah23601, 9 months ago

the mean of first 5 observation is 15. if mean of first 3 nos is 14 and mean of last 3 nos is 17 find the third no

Answers

Answered by SahilKumar1406
4

Answer:

Sum of first 5 observation=5(15)=75

Sum of first third observation =3(14)=42

Sum of last 3 observation=3(17)=51

3rd number=42+51-75=93-75=18.

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