The average height of 7 boys was 1.24 m. One of the boys, whose height was 1.3 m, left the group. What was the average height of the remaining boys?
|
7 boys |
6 boys |
Number |
7 |
6 |
Value |
1.24 |
? |
Total value |
8.68 |
7.38 |
Total height of 7 boys
= 7 x 1.24
= 8.68 m
Total height of the 6 remaining boys
= 8.68 - 1.3
= 7.38 m
Average height of the 6 remaining boys
= 7.38 ÷ 6
= 1.23 m
Answer(s): 1.23 m