PSLE The table shows the times taken by four students to complete a race.
- Who was the first in the race? Give your answer in number. (Eg 1)
- What was the average time taken by the 4 students to complete the race?
Students |
Time |
(1) David |
17.5 s |
(2) Bryan |
15.8 s |
(3) Adam |
16.7 s |
(4) Christian |
14.9 s |
(a)
1st in the race = (4) Christian
14.9 s2nd in the race = (2) Bryan
15.8 s3rd in the race = (3) Adam
16.7 s4th in the race = (1) David
17.5 s (1) David was the last in the race.
(b)
Total time taken by the 4 students
= 17.5 + 15.8 + 16.7 + 14.9
= 64.9 s
Average time taken by the 4 students
= 64.9 ÷ 4
= 16.225 s
Answer(s): (a) 1; (b) 16.225 s