PSLE The table shows the times taken by four boys to complete a race.
- Who was the first 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 |
16.1 s |
(2) Adam |
15.2 s |
(3) Christian |
15.6 s |
(4) David |
14.9 s |
(a)
1st in the race = (4) David
14.9 s2nd in the race = (2) Adam
15.2 s3rd in the race = (3) Christian
15.6 s4th in the race = (1) Bryan
16.1 s (1) Bryan was the last in the race.
(b)
Total time taken by the 4 boys
= 16.1 + 15.2 + 15.6 + 14.9
= 61.8 s
Average time taken by the 4 boys
= 61.8 ÷ 4
= 15.45 s
Answer(s): (a) 1; (b) 15.45 s