CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 12 values was calculated as 43. One value 57 was entered instead of 63. What is the correct average?
A. 45.5
B. 42.5
C. 44.5
D. 43.5
Correct Answer: D
Corrected average = 43+(63−57)/12 = 43.5.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 11 values was calculated as 41. One value 54 was entered instead of 59. What is the correct average?
A. 41.45
B. 42.45
C. 40.45
D. 43.45
Correct Answer: A
Corrected average = 41+(59−54)/11 = 41.45.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 10 values was calculated as 39. One value 51 was entered instead of 59. What is the correct average?
A. 40.8
B. 38.8
C. 41.8
D. 39.8
Correct Answer: D
Corrected average = 39+(59−51)/10 = 39.8.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 9 values was calculated as 37. One value 48 was entered instead of 55. What is the correct average?
A. 39.78
B. 38.78
C. 37.78
D. 36.78
Correct Answer: C
Corrected average = 37+(55−48)/9 = 37.78.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 8 values was calculated as 35. One value 45 was entered instead of 51. What is the correct average?
A. 35.75
B. 36.75
C. 37.75
D. 34.75
Correct Answer: A
Corrected average = 35+(51−45)/8 = 35.75.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 12 values was calculated as 33. One value 42 was entered instead of 47. What is the correct average?
A. 32.42
B. 35.42
C. 33.42
D. 34.42
Correct Answer: C
Corrected average = 33+(47−42)/12 = 33.42.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 11 values was calculated as 31. One value 39 was entered instead of 47. What is the correct average?
A. 33.73
B. 30.73
C. 31.73
D. 32.73
Correct Answer: C
Corrected average = 31+(47−39)/11 = 31.73.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 10 values was calculated as 29. One value 36 was entered instead of 43. What is the correct average?
A. 30.7
B. 28.7
C. 29.7
D. 31.7
Correct Answer: C
Corrected average = 29+(43−36)/10 = 29.7.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 9 values was calculated as 27. One value 33 was entered instead of 39. What is the correct average?
A. 27.67
B. 28.67
C. 29.67
D. 26.67
Correct Answer: A
Corrected average = 27+(39−33)/9 = 27.67.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The average of 8 values was calculated as 25. One value 30 was entered instead of 35. What is the correct average?
A. 25.62
B. 24.62
C. 27.62
D. 26.62
Correct Answer: A
Corrected average = 25+(35−30)/8 = 25.62.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 60 marks in 8 tests. What score is needed in the next test to raise the average to 63?
A. 87
B. 95
C. 83
D. 91
Correct Answer: A
Needed = (9×63) − (8×60) = 87.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 58 marks in 7 tests. What score is needed in the next test to raise the average to 63?
A. 98
B. 106
C. 94
D. 102
Correct Answer: A
Needed = (8×63) − (7×58) = 98.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 56 marks in 6 tests. What score is needed in the next test to raise the average to 60?
A. 84
B. 80
C. 92
D. 88
Correct Answer: A
Needed = (7×60) − (6×56) = 84.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 54 marks in 5 tests. What score is needed in the next test to raise the average to 57?
A. 68
B. 80
C. 76
D. 72
Correct Answer: D
Needed = (6×57) − (5×54) = 72.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 52 marks in 4 tests. What score is needed in the next test to raise the average to 57?
A. 85
B. 73
C. 81
D. 77
Correct Answer: D
Needed = (5×57) − (4×52) = 77.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 50 marks in 8 tests. What score is needed in the next test to raise the average to 54?
A. 94
B. 82
C. 90
D. 86
Correct Answer: D
Needed = (9×54) − (8×50) = 86.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 48 marks in 7 tests. What score is needed in the next test to raise the average to 51?
A. 80
B. 68
C. 76
D. 72
Correct Answer: D
Needed = (8×51) − (7×48) = 72.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 46 marks in 6 tests. What score is needed in the next test to raise the average to 51?
A. 77
B. 81
C. 89
D. 85
Correct Answer: B
Needed = (7×51) − (6×46) = 81.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 44 marks in 5 tests. What score is needed in the next test to raise the average to 48?
A. 72
B. 64
C. 68
D. 76
Correct Answer: C
Needed = (6×48) − (5×44) = 68.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A student has an average of 42 marks in 4 tests. What score is needed in the next test to raise the average to 45?
A. 65
B. 61
C. 57
D. 53
Correct Answer: C
Needed = (5×45) − (4×42) = 57.