The average height of seven students is 121 cm. If the average height of six students is 131 cm, find the height of the seventh student.
|
7 students |
6 students |
Number |
7 |
6 |
Value |
121 |
131 |
Total value |
847 |
786 |
Total height of the 7 students
= 7 x 121
= 847 cm
Total height of the 6 students
= 6 x 131
= 786 cm
Height of the seventh student
= 847 - 786
= 61 cm
Answer(s): 61 cm