PSLE The table shows the times taken by four boys 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 boys to complete the race?
Boys |
Time |
(1) Bryan |
12.2 s |
(2) David |
12.4 s |
(3) Christian |
11.1 s |
(4) Adam |
11.7 s |
(a)
1st in the race = (3) Christian
11.1 s2nd in the race = (4) Adam
11.7 s3rd in the race = (1) Bryan
12.2 s4th in the race = (2) David
12.4 s (4) Adam was the second in the race.
(b)
Total time taken by the 4 boys
= 12.2 + 12.4 + 11.1 + 11.7
= 47.4 s
Average time taken by the 4 boys
= 47.4 ÷ 4
= 11.85 s
Answer(s): (a) 4; (b) 11.85 s