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Engineering
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Average - Data Intensity 1 Multiple Questions and Answers.
| 21. | A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is___? | ||
| A. | 10 | ||
| B. | 20 | ||
| C. | 40 | ||
| D. | 73 | ||
| 22. | The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is___? | ||
| A. | 35.2 | ||
| B. | 36.1 | ||
| C. | 36.5 | ||
| D. | 39.1 | ||
| 23. | If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is__? | ||
| A. | 30 | ||
| B. | 40 | ||
| C. | 70 | ||
| D. | 90 | ||
| 24. | In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the rate in the remaining 40 overs to reach the target of 282 runs? | ||
| A. | 6.25 | ||
| B. | 6.5 | ||
| C. | 6.75 | ||
| D. | 7 | ||
| 25. | The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4? | ||
| A. | 2 | ||
| B. | 4 | ||
| C. | 70 | ||
| D. | 76 | ||
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