The average height of 3 pupils was 1.22 m. One of the pupils, whose height was 1.3 m, left the group. What was the average height of the remaining pupils?
|
3 pupils |
2 pupils |
Number |
3 |
2 |
Value |
1.22 |
? |
Total value |
3.66 |
2.36 |
Total height of 3 pupils
= 3 x 1.22
= 3.66 m
Total height of the 2 remaining pupils
= 3.66 - 1.3
= 2.36 m
Average height of the 2 remaining pupils
= 2.36 ÷ 2
= 1.18 m
Answer(s): 1.18 m