The average height of 3 pupils was 1.02 m. One of the pupils, whose height was 1.3 m, left the group. What was the average height of the remaining pupils?
|
3 pupils |
2 pupils |
Number |
3 |
2 |
Value |
1.02 |
? |
Total value |
3.06 |
1.76 |
Total height of 3 pupils
= 3 x 1.02
= 3.06 m
Total height of the 2 remaining pupils
= 3.06 - 1.3
= 1.76 m
Average height of the 2 remaining pupils
= 1.76 ÷ 2
= 0.88 m
Answer(s): 0.88 m