CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 6 numbers is 34. The sum of 4 known numbers is 132. The two missing numbers are in the ratio 2:7. What is the larger missing number?
A. 58
B. 56
C. 54
D. 60
Correct Answer: B
The missing pair totals 72. Divide it in ratio 2:7; larger value = 56.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 9 numbers is 33. The sum of 7 known numbers is 220. The two missing numbers are in the ratio 5:6. What is the larger missing number?
A. 40
B. 46
C. 44
D. 42
Correct Answer: D
The missing pair totals 77. Divide it in ratio 5:6; larger value = 42.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 8 numbers is 32. The sum of 6 known numbers is 202. The two missing numbers are in the ratio 4:5. What is the larger missing number?
A. 32
B. 30
C. 28
D. 34
Correct Answer: B
The missing pair totals 54. Divide it in ratio 4:5; larger value = 30.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 7 numbers is 31. The sum of 5 known numbers is 182. The two missing numbers are in the ratio 3:4. What is the larger missing number?
A. 22
B. 24
C. 20
D. 18
Correct Answer: C
The missing pair totals 35. Divide it in ratio 3:4; larger value = 20.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 6 numbers is 30. The sum of 4 known numbers is 160. The two missing numbers are in the ratio 2:3. What is the larger missing number?
A. 14
B. 12
C. 10
D. 16
Correct Answer: B
The missing pair totals 20. Divide it in ratio 2:3; larger value = 12.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 49, 48, 47, 50, 49, 49, 52, 52, and x is 50. Find x.
A. 54
B. 57
C. 60
D. 51
Correct Answer: A
Required total = 9×50=450. Known total is 396, so x=54.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 47, 46, 46, 48, 47, 47, 52, and x is 48. Find x.
A. 57
B. 48
C. 54
D. 51
Correct Answer: D
Required total = 8×48=384. Known total is 333, so x=51.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 45, 44, 44, 47, 46, 48, and x is 46. Find x.
A. 51
B. 45
C. 54
D. 48
Correct Answer: D
Required total = 7×46=322. Known total is 274, so x=48.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 43, 43, 42, 45, 46, and x is 44. Find x.
A. 42
B. 45
C. 48
D. 51
Correct Answer: B
Required total = 6×44=264. Known total is 219, so x=45.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 42, 41, 40, 45, and x is 42. Find x.
A. 48
B. 45
C. 39
D. 42
Correct Answer: D
Required total = 5×42=210. Known total is 168, so x=42.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 40, 39, 38, 40, 40, 39, 42, 43, and x is 40. Find x.
A. 39
B. 36
C. 45
D. 42
Correct Answer: A
Required total = 9×40=360. Known total is 321, so x=39.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 38, 37, 36, 39, 38, 38, 42, and x is 38. Find x.
A. 39
B. 36
C. 33
D. 42
Correct Answer: B
Required total = 8×38=304. Known total is 268, so x=36.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 36, 35, 35, 37, 37, 39, and x is 36. Find x.
A. 30
B. 39
C. 33
D. 36
Correct Answer: C
Required total = 7×36=252. Known total is 219, so x=33.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 34, 34, 33, 36, 37, and x is 34. Find x.
A. 30
B. 33
C. 27
D. 36
Correct Answer: A
Required total = 6×34=204. Known total is 174, so x=30.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 33, 32, 32, 36, and x is 32. Find x.
A. 33
B. 24
C. 27
D. 30
Correct Answer: C
Required total = 5×32=160. Known total is 133, so x=27.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 30, 29, 29, 31, 30, 30, 33, 34, and x is 30. Find x.
A. 27
B. 24
C. 21
D. 30
Correct Answer: B
Required total = 9×30=270. Known total is 246, so x=24.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 29, 28, 27, 29, 29, 28, 33, and x is 28. Find x.
A. 18
B. 27
C. 21
D. 24
Correct Answer: C
Required total = 8×28=224. Known total is 203, so x=21.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 27, 26, 25, 28, 28, 30, and x is 26. Find x.
A. 18
B. 24
C. 21
D. 15
Correct Answer: A
Required total = 7×26=182. Known total is 164, so x=18.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 25, 25, 24, 27, 28, and x is 24. Find x.
A. 12
B. 15
C. 21
D. 18
Correct Answer: B
Required total = 6×24=144. Known total is 129, so x=15.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of 24, 23, 23, 28, and x is 22. Find x.
A. 9
B. 18
C. 15
D. 12
Correct Answer: D
Required total = 5×22=110. Known total is 98, so x=12.