The average height of seven students is 123 cm. If the average height of six students is 132 cm, find the height of the seventh student.
|
7 students |
6 students |
Number |
7 |
6 |
Value |
123 |
132 |
Total value |
861 |
792 |
Total height of the 7 students
= 7 x 123
= 861 cm
Total height of the 6 students
= 6 x 132
= 792 cm
Height of the seventh student
= 861 - 792
= 69 cm
Answer(s): 69 cm