The average height of 3 students was 1.38 m. One of the students, whose height was 1.2 m, left the group. What was the average height of the remaining students?
|
3 students |
2 students |
Number |
3 |
2 |
Value |
1.38 |
? |
Total value |
4.14 |
2.94 |
Total height of 3 students
= 3 x 1.38
= 4.14 m
Total height of the 2 remaining students
= 4.14 - 1.2
= 2.94 m
Average height of the 2 remaining students
= 2.94 ÷ 2
= 1.47 m
Answer(s): 1.47 m