The average height of 4 pupils was 1.31 m. One of the pupils, whose height was 1.1 m, left the group. What was the average height of the remaining pupils?
| |
4 pupils |
3 pupils |
| Number |
4 |
3 |
| Value |
1.31 |
? |
| Total value |
5.24 |
4.14 |
Total height of 4 pupils
= 4 x 1.31
= 5.24 m
Total height of the 3 remaining pupils
= 5.24 - 1.1
= 4.14 m
Average height of the 3 remaining pupils
= 4.14 ÷ 3
= 1.38 m
Answer(s): 1.38 m
