PSLE The table shows the times taken by four girls 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 girls to complete the race?
Girls |
Time |
(1) Adam |
12.7 s |
(2) David |
13.3 s |
(3) Christian |
11.8 s |
(4) Bryan |
12.4 s |
(a)
1st in the race = (3) Christian
11.8 s2nd in the race = (4) Bryan
12.4 s3rd in the race = (1) Adam
12.7 s4th in the race = (2) David
13.3 s (4) Bryan was the second in the race.
(b)
Total time taken by the 4 girls
= 12.7 + 13.3 + 11.8 + 12.4
= 50.2 s
Average time taken by the 4 girls
= 50.2 ÷ 4
= 12.55 s
Answer(s): (a) 4; (b) 12.55 s