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) David |
11.9 s |
(2) Christian |
12.8 s |
(3) Adam |
11.3 s |
(4) Bryan |
11.4 s |
(a)
1st in the race = (3) Adam
11.3 s2nd in the race = (4) Bryan
11.4 s3rd in the race = (1) David
11.9 s4th in the race = (2) Christian
12.8 s (4) Bryan was the second in the race.
(b)
Total time taken by the 4 boys
= 11.9 + 12.8 + 11.3 + 11.4
= 47.4 s
Average time taken by the 4 boys
= 47.4 ÷ 4
= 11.85 s
Answer(s): (a) 4; (b) 11.85 s