The average height of 4 boys was 1.32 m. One of the boys, whose height was 1.2 m, left the group. What was the average height of the remaining boys?
|
4 boys |
3 boys |
Number |
4 |
3 |
Value |
1.32 |
? |
Total value |
5.28 |
4.08 |
Total height of 4 boys
= 4 x 1.32
= 5.28 m
Total height of the 3 remaining boys
= 5.28 - 1.2
= 4.08 m
Average height of the 3 remaining boys
= 4.08 ÷ 3
= 1.36 m
Answer(s): 1.36 m