The average height of 7 girls was 1.14 m. One of the girls, whose height was 1.2 m, left the group. What was the average height of the remaining girls?
|
7 girls |
6 girls |
Number |
7 |
6 |
Value |
1.14 |
? |
Total value |
7.98 |
6.78 |
Total height of 7 girls
= 7 x 1.14
= 7.98 m
Total height of the 6 remaining girls
= 7.98 - 1.2
= 6.78 m
Average height of the 6 remaining girls
= 6.78 ÷ 6
= 1.13 m
Answer(s): 1.13 m