CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 48, 58, and 87 km/h. What is the average speed?
A. 62.52 km/h
B. 64.52 km/h
C. 58.52 km/h
D. 60.52 km/h
Correct Answer: D
For three equal distances, harmonic mean = 3/(1/48+1/58+1/87) = 60.52 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 46, 56, and 84 km/h. What is the average speed?
A. 56.25 km/h
B. 62.25 km/h
C. 60.25 km/h
D. 58.25 km/h
Correct Answer: D
For three equal distances, harmonic mean = 3/(1/46+1/56+1/84) = 58.25 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 44, 54, and 81 km/h. What is the average speed?
A. 57.98 km/h
B. 53.98 km/h
C. 55.98 km/h
D. 59.98 km/h
Correct Answer: C
For three equal distances, harmonic mean = 3/(1/44+1/54+1/81) = 55.98 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 42, 52, and 78 km/h. What is the average speed?
A. 51.7 km/h
B. 55.7 km/h
C. 57.7 km/h
D. 53.7 km/h
Correct Answer: D
For three equal distances, harmonic mean = 3/(1/42+1/52+1/78) = 53.7 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 40, 50, and 75 km/h. What is the average speed?
A. 53.43 km/h
B. 49.43 km/h
C. 55.43 km/h
D. 51.43 km/h
Correct Answer: D
For three equal distances, harmonic mean = 3/(1/40+1/50+1/75) = 51.43 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 38, 48, and 72 km/h. What is the average speed?
A. 53.15 km/h
B. 49.15 km/h
C. 47.15 km/h
D. 51.15 km/h
Correct Answer: B
For three equal distances, harmonic mean = 3/(1/38+1/48+1/72) = 49.15 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 36, 46, and 69 km/h. What is the average speed?
A. 48.87 km/h
B. 46.87 km/h
C. 44.87 km/h
D. 50.87 km/h
Correct Answer: B
For three equal distances, harmonic mean = 3/(1/36+1/46+1/69) = 46.87 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 34, 44, and 66 km/h. What is the average speed?
A. 48.58 km/h
B. 42.58 km/h
C. 46.58 km/h
D. 44.58 km/h
Correct Answer: D
For three equal distances, harmonic mean = 3/(1/34+1/44+1/66) = 44.58 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 32, 42, and 63 km/h. What is the average speed?
A. 46.29 km/h
B. 44.29 km/h
C. 42.29 km/h
D. 40.29 km/h
Correct Answer: C
For three equal distances, harmonic mean = 3/(1/32+1/42+1/63) = 42.29 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers three equal distances at 30, 40, and 60 km/h. What is the average speed?
A. 42 km/h
B. 44 km/h
C. 38 km/h
D. 40 km/h
Correct Answer: D
For three equal distances, harmonic mean = 3/(1/30+1/40+1/60) = 40 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 48 km/h and 72 km/h. What is its average speed?
A. 59.6 km/h
B. 55.6 km/h
C. 57.6 km/h
D. 61.6 km/h
Correct Answer: C
For equal distances, average speed = 2uv/(u+v) = 57.6 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 46 km/h and 69 km/h. What is its average speed?
A. 59.2 km/h
B. 55.2 km/h
C. 53.2 km/h
D. 57.2 km/h
Correct Answer: B
For equal distances, average speed = 2uv/(u+v) = 55.2 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 44 km/h and 66 km/h. What is its average speed?
A. 52.8 km/h
B. 54.8 km/h
C. 56.8 km/h
D. 50.8 km/h
Correct Answer: A
For equal distances, average speed = 2uv/(u+v) = 52.8 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 42 km/h and 63 km/h. What is its average speed?
A. 52.4 km/h
B. 50.4 km/h
C. 48.4 km/h
D. 54.4 km/h
Correct Answer: B
For equal distances, average speed = 2uv/(u+v) = 50.4 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 40 km/h and 60 km/h. What is its average speed?
A. 46 km/h
B. 48 km/h
C. 50 km/h
D. 52 km/h
Correct Answer: B
For equal distances, average speed = 2uv/(u+v) = 48 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 38 km/h and 57 km/h. What is its average speed?
A. 43.6 km/h
B. 47.6 km/h
C. 45.6 km/h
D. 49.6 km/h
Correct Answer: C
For equal distances, average speed = 2uv/(u+v) = 45.6 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 36 km/h and 54 km/h. What is its average speed?
A. 47.2 km/h
B. 41.2 km/h
C. 45.2 km/h
D. 43.2 km/h
Correct Answer: D
For equal distances, average speed = 2uv/(u+v) = 43.2 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 34 km/h and 51 km/h. What is its average speed?
A. 44.8 km/h
B. 42.8 km/h
C. 38.8 km/h
D. 40.8 km/h
Correct Answer: D
For equal distances, average speed = 2uv/(u+v) = 40.8 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 32 km/h and 48 km/h. What is its average speed?
A. 36.4 km/h
B. 42.4 km/h
C. 40.4 km/h
D. 38.4 km/h
Correct Answer: D
For equal distances, average speed = 2uv/(u+v) = 38.4 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A vehicle covers equal distances at 30 km/h and 45 km/h. What is its average speed?
A. 34 km/h
B. 38 km/h
C. 40 km/h
D. 36 km/h
Correct Answer: D
For equal distances, average speed = 2uv/(u+v) = 36 km/h.