The average height of four students is 121 cm. If the average height of three students is 111 cm, find the height of the fourth student.
|
4 students |
3 students |
Number |
4 |
3 |
Value |
121 |
111 |
Total value |
484 |
333 |
Total height of the 4 students
= 4 x 121
= 484 cm
Total height of the 3 students
= 3 x 111
= 333 cm
Height of the fourth student
= 484 - 333
= 151 cm
Answer(s): 151 cm