The average height of 6 boys was 1.55 m. One of the boys, whose height was 1.2 m, left the group. What was the average height of the remaining boys?
| |
6 boys |
5 boys |
| Number |
6 |
5 |
| Value |
1.55 |
? |
| Total value |
9.3 |
8.1 |
Total height of 6 boys
= 6 x 1.55
= 9.3 m
Total height of the 5 remaining boys
= 9.3 - 1.2
= 8.1 m
Average height of the 5 remaining boys
= 8.1 ÷ 5
= 1.62 m
Answer(s): 1.62 m
