The average height of eight students is 121 cm. If the average height of seven students is 130 cm, find the height of the eighth student.
|
8 students |
7 students |
Number |
8 |
7 |
Value |
121 |
130 |
Total value |
968 |
910 |
Total height of the 8 students
= 8 x 121
= 968 cm
Total height of the 7 students
= 7 x 130
= 910 cm
Height of the eighth student
= 968 - 910
= 58 cm
Answer(s): 58 cm