The average height of 4 girls was 1.08 m. One of the girls, whose height was 1.2 m, left the group. What was the average height of the remaining girls?
|
4 girls |
3 girls |
Number |
4 |
3 |
Value |
1.08 |
? |
Total value |
4.32 |
3.12 |
Total height of 4 girls
= 4 x 1.08
= 4.32 m
Total height of the 3 remaining girls
= 4.32 - 1.2
= 3.12 m
Average height of the 3 remaining girls
= 3.12 ÷ 3
= 1.04 m
Answer(s): 1.04 m