The average height of 7 girls was 1.28 m. One of the girls, whose height was 1.4 m, left the group. What was the average height of the remaining girls?
| |
7 girls |
6 girls |
| Number |
7 |
6 |
| Value |
1.28 |
? |
| Total value |
8.96 |
7.56 |
Total height of 7 girls
= 7 x 1.28
= 8.96 m
Total height of the 6 remaining girls
= 8.96 - 1.4
= 7.56 m
Average height of the 6 remaining girls
= 7.56 ÷ 6
= 1.26 m
Answer(s): 1.26 m
