CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 48 km/h, 2 hours at 68 km/h, and 3 hours at 88 km/h. What is its average speed?
A. 72.67 km/h
B. 74.67 km/h
C. 76.67 km/h
D. 78.67 km/h
Correct Answer: B
Time-weighted average speed = (48+2×68+3×88)/6 = 74.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 46 km/h, 2 hours at 66 km/h, and 3 hours at 86 km/h. What is its average speed?
A. 70.67 km/h
B. 74.67 km/h
C. 76.67 km/h
D. 72.67 km/h
Correct Answer: D
Time-weighted average speed = (46+2×66+3×86)/6 = 72.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 44 km/h, 2 hours at 64 km/h, and 3 hours at 84 km/h. What is its average speed?
A. 74.67 km/h
B. 72.67 km/h
C. 70.67 km/h
D. 68.67 km/h
Correct Answer: C
Time-weighted average speed = (44+2×64+3×84)/6 = 70.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 42 km/h, 2 hours at 62 km/h, and 3 hours at 82 km/h. What is its average speed?
A. 72.67 km/h
B. 66.67 km/h
C. 68.67 km/h
D. 70.67 km/h
Correct Answer: C
Time-weighted average speed = (42+2×62+3×82)/6 = 68.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 40 km/h, 2 hours at 60 km/h, and 3 hours at 80 km/h. What is its average speed?
A. 70.67 km/h
B. 68.67 km/h
C. 66.67 km/h
D. 64.67 km/h
Correct Answer: C
Time-weighted average speed = (40+2×60+3×80)/6 = 66.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 38 km/h, 2 hours at 58 km/h, and 3 hours at 78 km/h. What is its average speed?
A. 62.67 km/h
B. 66.67 km/h
C. 64.67 km/h
D. 68.67 km/h
Correct Answer: C
Time-weighted average speed = (38+2×58+3×78)/6 = 64.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 36 km/h, 2 hours at 56 km/h, and 3 hours at 76 km/h. What is its average speed?
A. 60.67 km/h
B. 62.67 km/h
C. 64.67 km/h
D. 66.67 km/h
Correct Answer: B
Time-weighted average speed = (36+2×56+3×76)/6 = 62.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 34 km/h, 2 hours at 54 km/h, and 3 hours at 74 km/h. What is its average speed?
A. 64.67 km/h
B. 62.67 km/h
C. 58.67 km/h
D. 60.67 km/h
Correct Answer: D
Time-weighted average speed = (34+2×54+3×74)/6 = 60.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 32 km/h, 2 hours at 52 km/h, and 3 hours at 72 km/h. What is its average speed?
A. 60.67 km/h
B. 62.67 km/h
C. 58.67 km/h
D. 56.67 km/h
Correct Answer: C
Time-weighted average speed = (32+2×52+3×72)/6 = 58.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A bus travels for 1 hour at 30 km/h, 2 hours at 50 km/h, and 3 hours at 70 km/h. What is its average speed?
A. 58.67 km/h
B. 60.67 km/h
C. 54.67 km/h
D. 56.67 km/h
Correct Answer: D
Time-weighted average speed = (30+2×50+3×70)/6 = 56.67 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 190 km at 58 km/h and then 240 km at 78 km/h. Find the average speed for the entire trip.
A. 71.69 km/h
B. 65.69 km/h
C. 67.69 km/h
D. 69.69 km/h
Correct Answer: C
Average speed = 430/(190/58+240/78) = 67.69 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 180 km at 56 km/h and then 230 km at 76 km/h. Find the average speed for the entire trip.
A. 67.7 km/h
B. 69.7 km/h
C. 65.7 km/h
D. 63.7 km/h
Correct Answer: C
Average speed = 410/(180/56+230/76) = 65.7 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 170 km at 54 km/h and then 220 km at 74 km/h. Find the average speed for the entire trip.
A. 61.71 km/h
B. 63.71 km/h
C. 67.71 km/h
D. 65.71 km/h
Correct Answer: B
Average speed = 390/(170/54+220/74) = 63.71 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 160 km at 52 km/h and then 210 km at 72 km/h. Find the average speed for the entire trip.
A. 63.73 km/h
B. 59.73 km/h
C. 65.73 km/h
D. 61.73 km/h
Correct Answer: D
Average speed = 370/(160/52+210/72) = 61.73 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 150 km at 50 km/h and then 200 km at 70 km/h. Find the average speed for the entire trip.
A. 63.76 km/h
B. 61.76 km/h
C. 57.76 km/h
D. 59.76 km/h
Correct Answer: D
Average speed = 350/(150/50+200/70) = 59.76 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 140 km at 48 km/h and then 190 km at 68 km/h. Find the average speed for the entire trip.
A. 61.79 km/h
B. 59.79 km/h
C. 55.79 km/h
D. 57.79 km/h
Correct Answer: D
Average speed = 330/(140/48+190/68) = 57.79 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 130 km at 46 km/h and then 180 km at 66 km/h. Find the average speed for the entire trip.
A. 53.82 km/h
B. 57.82 km/h
C. 55.82 km/h
D. 59.82 km/h
Correct Answer: C
Average speed = 310/(130/46+180/66) = 55.82 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 120 km at 44 km/h and then 170 km at 64 km/h. Find the average speed for the entire trip.
A. 53.87 km/h
B. 51.87 km/h
C. 55.87 km/h
D. 57.87 km/h
Correct Answer: A
Average speed = 290/(120/44+170/64) = 53.87 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 110 km at 42 km/h and then 160 km at 62 km/h. Find the average speed for the entire trip.
A. 51.93 km/h
B. 49.93 km/h
C. 53.93 km/h
D. 55.93 km/h
Correct Answer: A
Average speed = 270/(110/42+160/62) = 51.93 km/h.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
A car covers 100 km at 40 km/h and then 150 km at 60 km/h. Find the average speed for the entire trip.
A. 50 km/h
B. 52 km/h
C. 48 km/h
D. 54 km/h
Correct Answer: A
Average speed = 250/(100/40+150/60) = 50 km/h.