Maths-
SAT
Easy
Question
Race Summary
|
Split number |
Race segment (meters) |
Split time (seconds) |
Total race time at end of split (seconds) |
|
1 |
0 - 500 |
109 |
109 |
|
2 |
500 - 1000 |
112 |
221 |
|
3 |
1000 - 1500 |
111 |
332 |
|
4 |
1500 - 2000 |
108 |
440 |
By the end of the season, the coach wants the team to reduce its mean split time by 10% as compared to this race. At the end of the season, what should the team's mean split time be, in seconds?
The correct answer is: 99
Mean split time 
10% of 110 = 11
110 – 11 = 99
The mean split time at the end of season is 99.
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Maths-
Race Summary
|
Split number |
Race segment (meters) |
Split time (seconds) |
Total race time at end of split (seconds) |
|
1 |
0 - 500 |
109 |
109 |
|
2 |
500 - 1000 |
112 |
221 |
|
3 |
1000 - 1500 |
111 |
332 |
|
4 |
1500 - 2000 |
108 |
440 |
During the fourth split of the race, the team rowed at a rate of 28 strokes per minute. To the nearest whole number, how many strokes did it take the team to complete the final 500 meters of the race?
Race Summary
|
Split number |
Race segment (meters) |
Split time (seconds) |
Total race time at end of split (seconds) |
|
1 |
0 - 500 |
109 |
109 |
|
2 |
500 - 1000 |
112 |
221 |
|
3 |
1000 - 1500 |
111 |
332 |
|
4 |
1500 - 2000 |
108 |
440 |
During the fourth split of the race, the team rowed at a rate of 28 strokes per minute. To the nearest whole number, how many strokes did it take the team to complete the final 500 meters of the race?
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