PSLE The table shows the times taken by four boys to complete a race.
- Who was the third 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) Adam |
11.3 s |
(2) David |
13.2 s |
(3) Bryan |
13 s |
(4) Christian |
12.1 s |
(a)
1st in the race = (1) Adam
11.3 s2nd in the race = (4) Christian
12.1 s3rd in the race = (3) Bryan
13 s4th in the race = (2) David
13.2 s (3) Bryan was the third in the race.
(b)
Total time taken by the 4 boys
= 11.3 + 13.2 + 13 + 12.1
= 49.6 s
Average time taken by the 4 boys
= 49.6 ÷ 4
= 12.4 s
Answer(s): (a) 3; (b) 12.4 s