PSLE The table shows the times taken by four pupils to complete a race.
- Who was the second in the race? Give your answer in number. (Eg 1)
- What was the average time taken by the 4 pupils to complete the race?
Pupils |
Time |
(1) David |
12 s |
(2) Bryan |
12.4 s |
(3) Christian |
10.7 s |
(4) Adam |
11.3 s |
(a)
1st in the race = (3) Christian
10.7 s2nd in the race = (4) Adam
11.3 s3rd in the race = (1) David
12 s4th in the race = (2) Bryan
12.4 s (4) Adam was the second in the race.
(b)
Total time taken by the 4 pupils
= 12 + 12.4 + 10.7 + 11.3
= 46.4 s
Average time taken by the 4 pupils
= 46.4 ÷ 4
= 11.6 s
Answer(s): (a) 4; (b) 11.6 s