The average height of eight students is 120 cm. If the average height of seven students is 122 cm, find the height of the eighth student.
|
8 students |
7 students |
Number |
8 |
7 |
Value |
120 |
122 |
Total value |
960 |
854 |
Total height of the 8 students
= 8 x 120
= 960 cm
Total height of the 7 students
= 7 x 122
= 854 cm
Height of the eighth student
= 960 - 854
= 106 cm
Answer(s): 106 cm