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 |
13.4 s |
(2) David |
13.9 s |
(3) Adam |
12.2 s |
(4) Christian |
12.7 s |
(a)
1st in the race = (3) Adam
12.2 s2nd in the race = (4) Christian
12.7 s3rd in the race = (1) Bryan
13.4 s4th in the race = (2) David
13.9 s (4) Christian was the second in the race.
(b)
Total time taken by the 4 boys
= 13.4 + 13.9 + 12.2 + 12.7
= 52.2 s
Average time taken by the 4 boys
= 52.2 ÷ 4
= 13.05 s
Answer(s): (a) 4; (b) 13.05 s