The average height of 3 pupils was 1.26 m. One of the pupils, whose height was 1.2 m, left the group. What was the average height of the remaining pupils?
| |
3 pupils |
2 pupils |
| Number |
3 |
2 |
| Value |
1.26 |
? |
| Total value |
3.78 |
2.58 |
Total height of 3 pupils
= 3 x 1.26
= 3.78 m
Total height of the 2 remaining pupils
= 3.78 - 1.2
= 2.58 m
Average height of the 2 remaining pupils
= 2.58 ÷ 2
= 1.29 m
Answer(s): 1.29 m
