The average height of 4 girls was 1.41 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 |
1.41 |
? |
Total value |
5.64 |
4.44 |
Total height of 4 girls
= 4 x 1.41
= 5.64 m
Total height of the 3 remaining girls
= 5.64 - 1.2
= 4.44 m
Average height of the 3 remaining girls
= 4.44 ÷ 3
= 1.48 m
Answer(s): 1.48 m