PSLE The table shows the times taken by four children 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 children to complete the race?
Children |
Time |
(1) Bryan |
12.1 s |
(2) Adam |
12.8 s |
(3) Christian |
10.9 s |
(4) David |
11.2 s |
(a)
1st in the race = (3) Christian
10.9 s2nd in the race = (4) David
11.2 s3rd in the race = (1) Bryan
12.1 s4th in the race = (2) Adam
12.8 s (4) David was the second in the race.
(b)
Total time taken by the 4 children
= 12.1 + 12.8 + 10.9 + 11.2
= 47 s
Average time taken by the 4 children
= 47 ÷ 4
= 11.75 s
Answer(s): (a) 4; (b) 11.75 s