The average height of 3 children was 1.24 m. One of the children, whose height was 1.3 m, left the group. What was the average height of the remaining children?
|
3 children |
2 children |
Number |
3 |
2 |
Value |
1.24 |
? |
Total value |
3.72 |
2.42 |
Total height of 3 children
= 3 x 1.24
= 3.72 m
Total height of the 2 remaining children
= 3.72 - 1.3
= 2.42 m
Average height of the 2 remaining children
= 2.42 ÷ 2
= 1.21 m
Answer(s): 1.21 m