The average height of 6 boys was 1.55 m. One of the boys, whose height was 1.5 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 |
7.8 |
Total height of 6 boys
= 6 x 1.55
= 9.3 m
Total height of the 5 remaining boys
= 9.3 - 1.5
= 7.8 m
Average height of the 5 remaining boys
= 7.8 ÷ 5
= 1.56 m
Answer(s): 1.56 m