The average height of four students is 128 cm. If the average height of three students is 117 cm, find the height of the fourth student.
|
4 students |
3 students |
Number |
4 |
3 |
Value |
128 |
117 |
Total value |
512 |
351 |
Total height of the 4 students
= 4 x 128
= 512 cm
Total height of the 3 students
= 3 x 117
= 351 cm
Height of the fourth student
= 512 - 351
= 161 cm
Answer(s): 161 cm