The average height of 3 pupils was 1.56 m. One of the pupils, whose height was 1.1 m, left the group. What was the average height of the remaining pupils?
|
3 pupils |
2 pupils |
Number |
3 |
2 |
Value |
1.56 |
? |
Total value |
4.68 |
3.58 |
Total height of 3 pupils
= 3 x 1.56
= 4.68 m
Total height of the 2 remaining pupils
= 4.68 - 1.1
= 3.58 m
Average height of the 2 remaining pupils
= 3.58 ÷ 2
= 1.79 m
Answer(s): 1.79 m