Given 2 scores of 20, 30, what should be score number 3 in order to attain an average score of 40?

Average = | Sum of our 2 numbers + unknown score of x |

Total Numbers |

40 = | 20 + 30 + x |

3 |

x + 50 = 120

x = **70**

x = **70**

Free Missing Average Calculator - Given a set of scores and an average, this calculates the next score necessary to attain that average

This calculator has 2 inputs.

This calculator has 2 inputs.

Average = (your Sum of all numbers + unknown score of x)/Total Numbers

For more math formulas, check out our Formula Dossier

For more math formulas, check out our Formula Dossier

- average
- A number expressing the central value of a set

Sum of Values/n - missing average
- A score or rank required to reach a certain average
- number
- an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.

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