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प्रश्न
The mean of five numbers is 50, out of which mean of 4 numbers is 46, find the 5th number:
पर्याय
4
20
434
66
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उत्तर
Since, the mean of five numbers is 50, out of which mean of 4 numbers is 46
So, the 5th number
= Sum of 5th Observation - Sum of 4th Observations
= (50 × 5) - (46 × 4)
= 250 - 184
= 66
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संबंधित प्रश्न
Following table shows the points of each player scored in four games:
| Player | Game 1 | Game 2 | Game 3 | Game 4 |
| A | 14 | 16 | 10 | 10 |
| B | 0 | 8 | 6 | 4 |
| C | 8 | 11 | Did not play | 13 |
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- Find the mean to determine A’s average number of points scored per game.
- To find the mean number of points per game for C, would you divide the total points by 3 or by 4? Why?
- B played in all the four games. How would you find the mean?
- Who is the best performer?
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