| 1. | The average of 11 results is 50. If the average of the first six results is 49 and that of the lastsix is 52, the sixth no. is ? | |
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48
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50
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52
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56
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Report Question| 2. | The average per day income of A, B and C is 450. If the average per day income of A and B be 400 and that of B and C be 430, the per day income of B is ? | |
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300
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310
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415
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425
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| 3. | The average of three numbers is 77. The first number is twice the second and the second number is twice the third. The first number is ? | |
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33
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66
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77
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132
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| 4. | The average of 10 numbers is calculated as 15. It is discovered later on that while calculating the average one number, namely 36, was wrongly read as 26. The correct average is ? | |
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20
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18
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16
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14
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| 5. | The average of 27 numbers is 60. If one number is changed from 28 to 82, the average is ? | |
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56
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58
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62
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64
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| 6. | A cricketer has a mean score of 60 runs in 10 innings. Find out how many runs are to be scored in the eleventh innings to raise the mean score to 62 ? | |
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83
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82
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80
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81
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| 7. | The average marks obtained by 40 students of a class is 86. If the 5 highest marks are removed, the average reduces by one mark. The average marks of the top 5 students is ? | |
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92
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96
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93
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97
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| 8. | The average of l0 items was found to be 80 but while calculating, one of the items was counted as 60 instead of 50. Then the correct average would have been ? | |
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69
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79.25
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79
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79.5
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| 9. | Average weight of 25 persons is increased by 1 kg when one man weighing 60 kg is replaced by a new person. Weight of new person is ? | |
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50 kg
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61 kg
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86 kg
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85 kg
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| 10. | The mean of 20 items is 55. If two items 45 and 30 are removed, the new mean of the remaining items is ? | |
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65.1
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65.3
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56.9
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56
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