The average height of eight students is 128 cm. If the average height of seven students is 137 cm, find the height of the eighth student.
| |
8 students |
7 students |
| Number |
8 |
7 |
| Value |
128 |
137 |
| Total value |
1024 |
959 |
Total height of the 8 students
= 8 x 128
= 1024 cm
Total height of the 7 students
= 7 x 137
= 959 cm
Height of the eighth student
= 1024 - 959
= 65 cm
Answer(s): 65 cm
